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# Martin Electronics

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- [Home](https://martin-electronics.co.za/) - Our Product Range Beams (2) Gate Automation (4) GSM (2) Long Range (5) Receivers (7) RF Remote Transmitters (27) Security Systems (3) Wireless Access Keypad (2) sonbahis girişsonbahissonbahis güncelgameofbetvdcasinomatbetgrandpashabetgrandpashabetエクスネスgiftcardmall/mygiftholiganbetholiganbetholiganbet girişAntalya EscortMeritking Giriş: Meritking Giriş AdresiMarsbahis Giriş: Marsbahis Güvenilir MiMavibet Giriş: Mavibet Para Yatırma Ve Çekme İşlemleriMeritking Giriş: Meritking Güvenilir Mi, Meritking Bonus Ve KampanyalarMarsbahis Giriş:
- [Our Gaurantee](https://martin-electronics.co.za/?page_id=1854) - Our Gaurantee Home - About
- [POPIA Manual](https://martin-electronics.co.za/?page_id=1839) - POPIA Manual
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- [Contact](https://martin-electronics.co.za/?page_id=1226) - Contact Us Get In Touch with Us! Name Email Message Send Office Email sales@martin-electronics.co.za technical@martin-electronics.co.za Office Phone +27 11 433 4084 Office Address 26 Kindon Rd, Robertsham, Johannesburg South, 2091
- [Resources](https://martin-electronics.co.za/?page_id=1554) - Resource Centre Remote Compatibility Instructional Videos YouTube Video VVVvN2ZkaW9GYXVESEpSMEJyeUZyVGJBLkFxUDZYNG42MUdN Sentry A6 Max Setting Gate Limits Manually Sentry A6 Max Menu Navigation Sentry A6 Max Delete Remote Transmitter Sentry A6 Max Learn New Remote Transmitter Sentry A6 Max Disengage Latch Feature NEW Sentry A6 Max Battery Saving Mode NEW ECO GREEN FEATURE Sentry A6 Max Self
- [Products](https://martin-electronics.co.za/?page_id=1399) - Our Products Beams (2) Gate Automation (4) GSM (2) Long Range (5) Receivers (7) RF Remote Transmitters (27) Security Systems (3) Wireless Access Keypad (2)

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## Products

- [Sentry RDO MAX Rollup Motor](https://martin-electronics.co.za/?product=sentry-rdo-max-rollup-motor) - The SENTRY® RDO MAX is a 3rd-generation roll-up door automation product designed for domestic and light industrial applications. The product is designed to fit most Domestic Roll-Up Garage Doors that have plastic or metal spool wheels. It operates by applying a rotational force to one of these spool wheels which then in turn opens, or closes the door curtain as desired. The RDO MAX system consists of two parts, one of which is the motorized portion, that drives the door, and fits inside the door curtain roll. This is known as the “Head Unit”. This part is controlled, electronically, from the “Wall Console”. The wall console contains the power source, and the remote control receiver and includes a courtesy light and a control button on the front cover. To keep wiring to a minimum, one LINK Cable, with plug in connectors is used between the units, for ease of use. The system can operate off 220VAC mains power ONLY and has a 2x12V DC back-up batteries housed inside the operator. The system power supply also charges the batteries to maintain it in a fully charged state. The system provides limited battery back-up for mains failure situations. Alerts are provided for both mains failure and low battery conditions. The system integrates a code hopping remote control receiver which is compatible with SENTRY® code hopping transmitters and SENTRY® code hopping compatible transmitters. A maximum of 100 remote controls buttons may be learnt into the system in total
- [Wireless Infra-Red Beams](https://martin-electronics.co.za/?product=wireless-infra-red-beams) - The SENTRY Wireless Infra-Red Beam system comprises of a transmitter unit and a receiver unit. The receiver is hardwired to 12V/24V and the transmitter unit is powered using two AA 1.5V batteries. The products utilize a modulated 840nm wavelength Infra-Red Beam, which ascertains that false triggers are kept minimal without compromising product performance. The pair of units are rated to be installed at a maximum distance of 15m apart without any obstacles between them in the line-of-sight. The SENTRY Wireless Infra-Red Beams are compatible with all sliding gate operators, roll-up garage door operators, and swing gate operators, and may even be used as perimeter beams for an alarm system. The units are housed in matching opaque, aesthetically designed enclosures that protect beam signal integrity and filter out light pollution to improve performance during the daytime. The wireless option is installer and user friendly and includes embedded on-board battery status alerts in the transmitter unit to inform the owner that the battery capacity level is depleting or running low.
- [SENTRY GSM LINK-IT 2](https://martin-electronics.co.za/?product=sentry-gsm-link-it-2) - The SENTRY® LINK-IT 2 is a cost-effective GSM solution designed for a wide range of remote automation and control applications. User control via SMS. It provides ONE digital Input (configurable by polarity of triggering) and ONE relay Output (active state settable to Low or High plus NO and NC free potential contacts). A key feature is the ability to logically "LINK" the INPUT to the OUTPUT. This allows a specific input state to automatically control the output state — ideal for standalone operation. Notably, this function remains active even when the network connection is lost, ensuring reliable automation at all times. Get a full Device status report using the **password*rsta command.
- [SENTRY GSM LINK-IT 4](https://martin-electronics.co.za/?product=sentry-gsm-link-it-4) - The SENTRY® LINK-IT 4 is a cost effective but versatile IoT (Internet of Things) solution for various remote automation projects. User control via SMS. It provides FOUR digital Inputs (configurable by polarity of triggering) and TWO relay Outputs (active state settable to Low or High plus NO and NC free potential contacts). A key feature is the ability to logically "LINK" the INPUT to the OUTPUT. This allows a specific input state to automatically control the output state — ideal for standalone operation. Notably, this function remains active even when the network connection is lost, ensuring reliable automation at all times. Get a full Device status report using the **password*rsta command.
- [4 Zone Alarm (Beam version)](https://martin-electronics.co.za/?product=4-zone-alarm-beam-version)
- [4 Zone Alarm Panel (Standard)](https://martin-electronics.co.za/?product=4-zone-alarm-panel-standard)
- [Passive Infra-Red Detector](https://martin-electronics.co.za/?product=passive-infra-red-detector)
- [4 CH Long Range Transmitter (433MHz)](https://martin-electronics.co.za/?product=4-ch-long-range-transmitter-433mhz) - The SENTRY 4 Channel Long Range Transmitter is a high-power code-hopping Radio Frequency Remote Transmitter that is designed for applications that require exceptionally long-range communications. The Long Range Transmitter unit is compatible with the Long Range Receiver as well as the standard SENTRY receiver provided that they have the same carrier frequency and modulation. The Long Range Transmitter is equipped with an antenna to facilitate up to approximately ~1000m line-of-sight transmission range in its application topology. The SENTRY Long Range Transmitter is robust and reliable and its inter-compatibility with other SENTRY products makes it versatile and powerful in home and industrial security and control applications.
- [1 CH Long Range Transmitter (403MHz)](https://martin-electronics.co.za/?product=1-ch-long-range-transmitter-403mhz) - The SENTRY 1 Channel Long Range Transmitter is a high-power code-hopping Radio Frequency Remote Transmitter that is designed for applications that require exceptionally long-range communications. The Long Range Transmitter unit is compatible with the Long Range Receiver as well as the standard SENTRY receiver provided that they have the same carrier frequency and modulation. The Long Range Transmitter is equipped with an antenna to facilitate up to approximately ~1000m line-of-sight transmission range in its application topology. The SENTRY Long Range Transmitter is robust and reliable and its inter-compatibility with other SENTRY products makes it versatile and powerful in home and industrial security and control applications.
- [1 CH Long Range Receiver (403MHz)](https://martin-electronics.co.za/?product=1-ch-long-range-receiver-403mhz) - The SENTRY 1 Channel Long Range Receiver is a code-hopping Superheterodyne Radio Frequency Remote Receiver that is designed for applications that require exceptionally long-range communications. The Long Range Receiver unit is compatible with the Long Range Transmitter as well as the standard SENTRY Transmitters provided that they have the same carrier frequency and modulation. The Long Range Receiver is equipped with an antenna to facilitate up to approximately ~1000m line-of-sight reception range in its application topology. The SENTRY Long Range Receiver is robust and reliable and its inter-compatibility with other SENTRY products makes it versatile and powerful in home and industrial security and control applications.
- [Nylon Angle Rack](https://martin-electronics.co.za/?product=nylon-angle-rack) - The new SENTRY Nylon Angle Rack is a lightweight durable substitute for a metal rack. The Nylon angle rack is manufactured using a rigid, robust grade of engineering polymer that can withstand extreme ambient temperatures and direct sunlight. These carefully considered material properties mean that the Nylon Angle Rack is a frugal alternative to the metal counterpart. The SENTRY Nylon Angle Rack does not require lubricant or maintenance. The rack is also modular in design, meaning that the installer may assemble any length of rack required on site simply by adding or removing portions of the rack. Its ergonomic design and interlocking engineering polymer mechanisms ascertain that installation of the rack onto the gate is simple and fast. The nylon angle rack option is lighter than the metal rack and the coefficient of friction is lower in the Nylon material so it will improve the speed of the gate, and it will operate more quietly.
- [1 CH Long Range Receiver (433MHz)](https://martin-electronics.co.za/?product=1-ch-long-range-receiver-433mhz) - The SENTRY 1 Channel Long Range Receiver is a code-hopping Superheterodyne Radio Frequency Remote Receiver that is designed for applications that require exceptionally long-range communications. The Long Range Receiver unit is compatible with the Long Range Transmitter as well as the standard SENTRY Transmitters provided that they have the same carrier frequency and modulation. The Long Range Receiver is equipped with an antenna to facilitate up to approximately ~1000m line-of-sight reception range in its application topology. The SENTRY Long Range Receiver is robust and reliable and its inter-compatibility with other SENTRY products makes it versatile and powerful in home and industrial security and control applications.
- [1 CH Long Range Transmitter (433MHz)](https://martin-electronics.co.za/?product=1-ch-long-range-transmitter-433mhz) - The SENTRY 1 Channel Long Range Transmitter is a high-power code-hopping Radio Frequency Remote Transmitter that is designed for applications that require exceptionally long-range communications. The Long Range Transmitter unit is compatible with the Long Range Receiver as well as the standard SENTRY receiver provided that they have the same carrier frequency and modulation. The Long Range Transmitter is equipped with an antenna to facilitate up to approximately ~1000m line-of-sight transmission range in its application topology. The SENTRY Long Range Transmitter is robust and reliable and its inter-compatibility with other SENTRY products makes it versatile and powerful in home and industrial security and control applications.
- [Wireless OTP Keypad (For Armed Response Only)](https://martin-electronics.co.za/?product=wireless-otp-keypad-for-armed-response-only) - The SENTRY Wireless Access Control Keypad (OTP) provides a powerful solution for armed response customers that require a stand-alone security interface. The product incorporates a secure PIN code that is randomly selected from 7000 pre-loaded secure 6-digit codes. These PIN codes are accessible via the SENTRY-X Platform remotely and securely. The PIN code will allow users access when it is typed in correctly on the unit. Upon successful entry after the PIN code is correctly entered, that unique PIN code will be deleted from the device’s memory and the PIN code will be expired and not reusable. This is a safety feature that ensures that a PIN code cannot be shared with others, the PIN code is only valid for a one time entry. The SENTRY Wireless Access Control Keypad can integrate into any existing security infrastructure wirelessly which makes it installer-friendly and user friendly. The product’s versatility allows it to be integrated wirelessly into many different application topologies where security and access control are needed, whether it is a complex system or a stand-alone application. The product has 15 channels to activate numerous kinds of peripherals. There is also a memory module for back up and restoring of data.
- [Wireless Access Keypad](https://martin-electronics.co.za/?product=wireless-access-keypad) - The SENTRY Wireless Access Control Keypad provides a portable and powerful solution for customers that require a stand-alone security interface. The product incorporates a simple, 1-10 digit user-defined PIN code. The PIN code will allow users access when it is typed in correctly on the unit. The SENTRY Wireless Access Control Keypad can integrate into any existing security infrastructure wirelessly which makes it installer-friendly and user friendly. The product’s versatility allows it to be integrated wirelessly into many different application topologies where security and access control are needed, whether it is a complex system or a stand-alone application. The product has 15 channels to activate numerous kinds of peripherals and it can accommodate up to 1000 unique PIN codes. There is also a memory module for back up and restoring of data.
- [Wired Infra-Red Beams](https://martin-electronics.co.za/?product=wired-infra-red-beams) - The SENTRY Wired Infra-Red Beam system comprises of a transmitter unit and a receiver unit. The products utilize a modulated 840nm wavelength Infra-Red Beam, which ascertains that false triggers are kept minimal without compromising product performance. The pair of units are rated to be installed at a maximum distance of 15m apart without any obstacles between them in the line-of-sight. The SENTRY Wired Infra-Red Beams are compatible with all sliding gate operators, roll-up garage door operators, and swing gate operators, and may even be used as perimeter beams for an alarm system. The units are housed in matching opaque, aesthetically designed enclosures that protect beam signal integrity and filter out light pollution to improve performance during the daytime.
- [A6 Max](https://martin-electronics.co.za/?product=a6-max) - The SENTRY A6 Max is an IoT-enabled, fully customizable, Intelligent sliding gate operator that is designed to empower the user with unprecedented access control, real-time feedback, and remote status monitoring ensuring that the homeowner stays informed, updated, and alert at all times. It is the sentient security that ascertains safety at all times, notifying the owner via push notifications of any change in status. The A6 Max has an independent power supply unit that will power the product even without a battery being present. The battery is kept at full capacity and it only provides power to the unit in the event of a mains power failure, thus providing true battery backup and stalwart security that is always operational and ready.
- [Sherlo 6 Button Compatible (403 MHz)](https://martin-electronics.co.za/?product=sherlo-6-button-compatible-403-mhz) - The SENTRY Sherlo Compatible 6 Button 433MHz Radio Frequency Transmitter Learns and functions as the standard Sherlo remotes do.
- [Learning 4 Button (403MHz)](https://martin-electronics.co.za/?product=learning-4-button-403mhz) - The SENTRY Learning 4 Button 403MHz Radio Frequency Remote Transmitter is equipped with an internal receiver that has the capability of “learning” or cloning another transmitter’s code when the two transmitters are within proximity of one another and the “learning” method is executed as explained in the product leaflet. This embedded technology means that the user will no longer need to adjust DIP switches on the PCB, cloning of remotes is done by simple button-press sequences and is confirmed to be successfully learned into memory by LED flashing on the transmitter that is receiving the copied code. The method of “learning” the code of one transmitter into another transmitter is simple and takes seconds to accomplish and the learning range of transmitters are intuitive and user-friendly. The Learning 4 Button facilitates the cloning of most of SENTRY’s legacy code protocols such as Binary, Inverted-Trinary, and SMART.
- [Learning 3 Button (403MHz)](https://martin-electronics.co.za/?product=learning-3-button-403mhz) - The SENTRY Learning 3 Button 403MHz Radio Frequency Remote Transmitter is equipped with an internal receiver that has the capability of “learning” or cloning another transmitter’s code when the two transmitters are within proximity of one another and the “learning” method is executed as explained in the product leaflet. This embedded technology means that the user will no longer need to adjust DIP switches on the PCB, cloning of remotes is done by simple button-press sequences and is confirmed to be successfully learned into memory by LED flashing on the transmitter that is receiving the copied code. The method of “learning” the code of one transmitter into another transmitter is simple and takes seconds to accomplish and the learning range of transmitters are intuitive and user-friendly. The Learning 3 Button facilitates the cloning of most of SENTRY’s legacy code protocols such as Binary, Inverted-Trinary, and SMART.
- [Learning 1 Button (403MHz)](https://martin-electronics.co.za/?product=learning-1-button-403mhz) - The SENTRY Learning 1 Button 403MHz Radio Frequency Remote Transmitter is equipped with an internal receiver that has the capability of “learning” or cloning another transmitter’s code when the two transmitters are within proximity of one another and the “learning” method is executed as explained in the product leaflet. This embedded technology means that the user will no longer need to adjust DIP switches on the PCB, cloning of remotes is done by simple button-press sequences and is confirmed to be successfully learned into memory by LED flashing on the transmitter that is receiving the copied code. The method of “learning” the code of one transmitter into another transmitter is simple and takes seconds to accomplish and the learning range of transmitters are intuitive and user-friendly. The Learning 1 Button facilitates the cloning of most of SENTRY’s legacy code protocols such as Binary, Inverted-Trinary, and SMART.
- [French 3 Button (403MHz)](https://martin-electronics.co.za/?product=french-3-button-403mhz) - The SENTRY French 3 Button 403MHz Radio Frequency Transmitter utilizes an internal DIP switch as a basis to generate the rolling code for its encrypted transmissions. Each button-press event is uniquely encrypted by the French modulation protocol making the French code protocol relatively resilient against eavesdropping and code grabbing. The SENTRY products that are equipped with the French modulation protocol are legacy products and many of the legacy products are forward compatible with the newer products containing embedded technology to learn the legacy code modulation protocol supporting products.
- [French 1 Button (403MHz)](https://martin-electronics.co.za/?product=french-1-button-403mhz) - The SENTRY French 1 Button 403MHz Radio Frequency Transmitter utilizes an internal DIP switch as a basis to generate the rolling code for its encrypted transmissions. Each button-press event is uniquely encrypted by the French modulation protocol making the French code protocol relatively resilient against eavesdropping and code grabbing. The SENTRY products that are equipped with the French modulation protocol are legacy products and many of the legacy products are forward compatible with the newer products containing embedded technology to learn the legacy code modulation protocol supporting products.
- [Fixed Code Binary 3 Button (403MHz)](https://martin-electronics.co.za/?product=fixed-code-binary-3-button-403mhz) - The SENTRY Fixed-code Binary 3 Button 403MHz Radio Frequency Transmitter is a standard DIP-switch type remote control that facilitates up to 4096 unique codes in the binary code protocol. This product is also equipped with a “split-code” mode of operation, which enables the user to assign multiple devices to the same transmitter. This is useful in applications which involve townhouse complexes where a common code may be set for the gate, while still allowing the user to have user-unique buttons that only work with their specific devices in their specific unit within the complex.
- [Fixed Code Binary 1 Button (403MHz)](https://martin-electronics.co.za/?product=fixed-code-binary-1-button-403mhz) - The SENTRY Fixed-code Binary 1 Button 403MHz Radio Frequency Transmitter is a standard DIP-switch type remote control that facilitates up to 4096 unique codes in the binary code protocol. This product is also equipped with a “split-code” mode of operation, which enables the user to assign multiple devices to the same transmitter. This is useful in applications which involve townhouse complexes where a common code may be set for the gate, while still allowing the user to have user-unique buttons that only work with their specific devices in their specific unit within the complex.
- [Wiegand 4 Button 26Bit (433MHz)](https://martin-electronics.co.za/?product=wiegand-4-button-26bit-433mhz) - The SENTRY Wiegand 26Bit 4 Button 433MHz Radio Frequency Transmitter is an RF Transmitter that communicates on the Wiegand protocol with a carrier frequency of 433.925MHz. Wiegand is a de facto standard in industrial and access control industries and these transmitters coupled with the matching SENTRY Wiegand Radio Frequency Receiver yield a remote control system that is compatible with many Wiegand systems and installations. The product setup is semi-custom, which means that the customer has power to customize certain bit fields, but only in the specified, structured way as elaborated on in the product manual. The 26 bit field of the product includes client code (8 bits), serial number (16 bits), and button code (2 bits). These customizable fields may be specified by the customer when orders are placed.
- [Nova Compatible 6 Button (433MHz)](https://martin-electronics.co.za/?product=nova-compatible-6-button-433mhz) - The SENTRY Nova Compatible 6 Button 433MHz Radio Frequency Transmitter Learns and functions as the standard Nova remotes do.
- [Nova Compatible 1 Button (433MHz)](https://martin-electronics.co.za/?product=nova-compatible-1-button-433mhz) - The SENTRY Nova Compatible 1 Button 433MHz Radio Frequency Transmitter Learns and functions as the standard Nova remotes do.
- [Learning 4 Button (433MHz)](https://martin-electronics.co.za/?product=learning-4-button-433mhz) - The SENTRY Learning 4 Button 433MHz Radio Frequency Remote Transmitter is equipped with an internal receiver that has the capability of “learning” or cloning another transmitter’s code when the two transmitters are within proximity of one another and the “learning” method is executed as explained in the product leaflet. This embedded technology means that the user will no longer need to adjust DIP switches on the PCB, cloning of remotes is done by simple button-press sequences and is confirmed to be successfully learned into memory by LED flashing on the transmitter that is receiving the copied code. The method of “learning” the code of one transmitter into another transmitter is simple and takes seconds to accomplish and the learning range of transmitters are intuitive and user-friendly. The Learning 4 Button facilitates the cloning of most of SENTRY’s legacy code protocols such as Binary, Inverted-Trinary, and SMART.
- [Learning 3 Button (433MHz)](https://martin-electronics.co.za/?product=learning-3-button-433mhz) - The SENTRY Learning 3 Button 433MHz Radio Frequency Remote Transmitter is equipped with an internal receiver that has the capability of “learning” or cloning another transmitter’s code when the two transmitters are within proximity of one another and the “learning” method is executed as explained in the product leaflet. This embedded technology means that the user will no longer need to adjust DIP switches on the PCB, cloning of remotes is done by simple button-press sequences and is confirmed to be successfully learned into memory by LED flashing on the transmitter that is receiving the copied code. The method of “learning” the code of one transmitter into another transmitter is simple and takes seconds to accomplish and the learning range of transmitters are intuitive and user-friendly. The Learning 3 Button facilitates the cloning of most of SENTRY’s legacy code protocols such as Binary, Inverted-Trinary, and SMART.
- [Learning 1 Button (433MHz)](https://martin-electronics.co.za/?product=learning-1-button-433mhz-2) - The SENTRY Learning 1 Button 433MHz Radio Frequency Remote Transmitter is equipped with an internal receiver unit and embedded software technology that allows users to “learn” or clone the code that is present on another transmitter without the need to open the product enclosure and manually configure DIP switches. The SENTRY Learning range of remote transmitters are able to clone unencrypted legacy SENTRY code protocols such as Binary, Inverted-Trinary, and SMART.
- [Code Hopping 3 Button (433MHz)](https://martin-electronics.co.za/?product=code-hopping-3-button-433mhz-2) - The SENTRY Code-Hopping 3 Button 433MHz Radio Frequency Remote Transmitter operates on the 433.925MHz frequency band and utilizes Microchip™ KEELOQ embedded technology to encrypt the transmission signals of the product making it resilient and resistant to unauthorized code grabbing or copying. This encrypted signal changes at each event of a button press based on a predetermined algorithm making it extremely secure against potential security breaches. Each transmitter is assigned an unchangeable, unique serial number, which is used as its unique identifier token. As per code protocol, the user is required to “Learn” the remote transmitter into the receiver while in proximity of the receiver as elaborated in the instruction leaflet. Transmitter-to-transmitter “Learning” of codes is not permitted in the code-hopping range of products.
- [Code Hopping 4 Button (433MHz)](https://martin-electronics.co.za/?product=code-hopping-4-button-433mhz) - The SENTRY Code-Hopping 4 Button 433MHz Radio Frequency Remote Transmitter utilizes Microchip™ KEELOQ encryption code protocols, which randomizes the code that is transmitted on each button press based on a predetermined algorithm. This ascertains that the radio frequency signal transmitted by the product is encrypted and resilient to code grabbing or copying by any third party. Each transmitter is unique and has a serial number that is used as its unique identifying token. This allows transmitters to be identified individually and they are never duplicated. As per code protocol, the user is required to “Learn” the remote transmitter into the receiver while in proximity of the receiver as elaborated in the instruction leaflet. Transmitter-to-transmitter “Learning” of codes is not permitted in the code-hopping range of products. The code-hopping range of radio frequency transmitters are securely linked to the receiver units once they are learned into memory. This means that even if it were possible to copy the code transmitted, the receiver still would not react to the foreign device because its serial number will not be recognized. This ascertains that foreign transmitters cannot create a security breach and the user can rest assured.
- [Code Hopping 1 Button (433MHz)](https://martin-electronics.co.za/?product=code-hopping-1-button-433mhz-2) - The SENTRY Code-Hopping 1 Button 433MHz Radio Frequency Remote Transmitter operates on the 433.925MHz frequency band and utilizes Microchip™ KEELOQ embedded technology to encrypt the transmission signals of the product making it resilient and resistant to unauthorized code grabbing or copying. This encrypted signal changes at each event of a button press based on a predetermined algorithm making it extremely secure against potential security breaches. Each transmitter is assigned an unchangeable, unique serial number, which is used as its unique identifier token. As per code protocol, the user is required to “Learn” the remote transmitter into the receiver while in proximity of the receiver as elaborated in the instruction leaflet. Transmitter-to-transmitter “Learning” of codes is not permitted in the code-hopping range of products.
- [Fixed Code Binary 3 Button (433MHz)](https://martin-electronics.co.za/?product=fixed-code-binary-3-button-433mhz) - The SENTRY Fixed-code Binary 3 Button 433MHz Radio Frequency Transmitter is a standard DIP-switch type remote control that facilitates up to 4096 unique codes in the binary code protocol. This product is also equipped with a “split-code” mode of operation, which enables the user to assign multiple devices to the same transmitter. This is useful in applications which involve townhouse complexes where a common code may be set for the gate, while still allowing the user to have user-unique buttons that only work with their specific devices in their specific unit within the complex.
- [Fixed Code Binary 1 Button (433MHz)](https://martin-electronics.co.za/?product=fixed-code-binary-1-button-433mhz) - The SENTRY Fixed-code Binary 1 Button 433MHz Radio Frequency Transmitter is a standard DIP-switch type remote control that facilitates up to 4096 unique codes in the binary code protocol. This product is also equipped with a “split-code” mode of operation, which enables the user to assign multiple devices to the same transmitter. This is useful in applications which involve townhouse complexes where a common code may be set for the gate, while still allowing the user to have user-unique buttons that only work with their specific devices in their specific unit within the complex.
- [Dual Frequency Remote](https://martin-electronics.co.za/?product=dual-frequency-remote) - The SENTRY Dual Frequency Remote incorporates legacy and modern code-hopping technology as well as the unique ability to transmit on both 403.55MHz and 433.925MHz carrier frequencies. The integrated button learning protocol ensures that learning new remotes into the Dual Frequency remote is effortless and compatibility across frequency bands and code protocols ascertains that the unit is user-friendly and extremely versatile when it is correctly applied within a security topology. The technology embedded in the Dual Frequency remote grants the user more power at their fingertips than ever before.
- [Wiegand 4 Button 30Bit (433MHz)](https://martin-electronics.co.za/?product=wiegand-4-button-30bit-433mhz) - The SENTRY Wiegand 30Bit 4 Button 433MHz Radio Frequency Transmitter is an RF Transmitter that communicates on the Wiegand protocol with a carrier frequency of 433.925MHz. Wiegand is a de facto standard in industrial and access control industries and these transmitters coupled with the matching SENTRY Wiegand Radio Frequency Receiver yield a remote control system that is compatible with many Wiegand systems and installations. The product setup is semi-custom, which means that the customer has power to customize certain bit fields, but only in the specified, structured way as elaborated on in the product manual. The 26 bit field of the product includes client code (8 bits), site code (4 bits), serial number (16 bits), and button code (2 bits). The customer may specify these customizable fields when orders are placed.
- [Code Hopping 6 Button (433MHz)](https://martin-electronics.co.za/?product=code-hopping-6-button-433mhz) - The SENTRY Code-Hopping 6 Button 433MHz Radio Frequency Remote Transmitter utilizes Microchip™ KEELOQ encryption code protocols, which randomizes the code that is transmitted on each button press based on a predetermined algorithm. This ascertains that the radio frequency signal transmitted by the product is encrypted and resilient to code grabbing or copying by any third party. Each transmitter is unique and has a serial number that is used as its unique identifying token. This allows transmitters to be identified individually and they are never duplicated. As per code protocol, the user is required to “Learn” the remote transmitter into the receiver while in proximity of the receiver as elaborated in the instruction leaflet. Transmitter-to-transmitter “Learning” of codes is not permitted in the code-hopping range of products. The code-hopping range of radio frequency transmitters are securely linked to the receiver units once they are learned into memory. This means that even if it were possible to copy the code transmitted, the receiver still would not react to the foreign device because its serial number will not be recognized. This ascertains that foreign transmitters cannot create a security breach and the user can rest assured.
- [Learning 1 Ch Receiver (403MHz)](https://martin-electronics.co.za/?product=learning-1-ch-receiver-403mhz) - The SENTRY 403MHz learning receiver is provisioned to accommodate Binary, Trinary, and French protocols. The unit is a single channel receiver module equipped with a 10 Amp potential-free relay contact, which is suitable for many applications. The versatility of this unit allows it to communicate with remote controls encoded in Binary, Trinary, and French legacy codes and also gives rise to many different applications. Pairing or learning remote controls into the receiver unit is simple and takes seconds to accomplish provided that the devices are within proximity of one another. The Learning 1 Channel Receiver (403MHz) is easily identifiable by the black, red, and yellow stickers on the box and the black plastic enclosure.
- [MERDC-01](https://martin-electronics.co.za/?product=merdc-01) - The SENTRY MERDC-01 is a roller shutter remote control system that is designed to control roller shutter doors for garage doors and mini-factories. The unit is designed to facilitate the operations of powerful squirrel cage and tubular motors, which may be found controlling large roller shutter doors at mini factories. The SENTRY MERDC-01 is designed to control these roller shutters by means of utilizing the existing Radio Frequency products in the SENTRY range. The MERDC-01 comes standard with two pre-programmed three-button 433MHz SENTRY code-hopping transmitters.
- [Learning 1 Ch Receiver 1000 User (433MHz)](https://martin-electronics.co.za/?product=learning-1-ch-receiver-1000-user-433mhz) - The SENTRY 433MHz learning receiver 1000 User is a SuperHet, code-hopping receiver designed for situations where there is a large user base present such as patient care, restaurants, or high traffic access control applications. The unit is a one channel receiver module equipped with one 5 Amp potential-free relay contact, which is suitable for many applications. In addition, the unit facilitates a RS232 output where serial data may be used for logging data related to the device’s specific application. The versatility of this unit gives rise to many different applications. Pairing or learning remote controls into the receiver unit is simple and takes seconds to accomplish provided that the devices are within proximity of one another. The Learning 1 Channel Receiver 1000 User (433MHz) is easily identifiable by the blue plastic enclosure.
- [Learning 1 Ch Receiver (433MHz)](https://martin-electronics.co.za/?product=learning-1-ch-receiver-433mhz) - The SENTRY 433MHz learning receiver is provisioned to accommodate code hopping technology that ascertains a secure link between devices that cannot be duplicated from remote-to-remote as seen in the legacy Binary, Trinary, French range of products. This is achieved by utilizing KEELOQ protocol, which is a Trademark of Microchip Technology Inc. The unit is a one channel receiver module equipped with one 10 Amp potential-free relay contacts, which are suitable for many applications. The versatility of this unit gives rise to many different applications. Pairing or learning remote controls into the receiver unit is simple and takes seconds to accomplish provided that the devices are within proximity of one another. The Learning 1 Channel Receiver (433MHz) is easily identifiable by the blue plastic enclosure.
- [Sherlo 4 Button Compatible (403 MHz)](https://martin-electronics.co.za/?product=sherlo-4-button-compatible-403-mhz) - The SENTRY Sherlo Compatible 4 Button 433MHz Radio Frequency Transmitter Learns and functions as the standard Sherlo remotes do.
- [Learning 2 Ch Receiver (433MHz)](https://martin-electronics.co.za/?product=learning-2-ch-receiver-433mhz) - The SENTRY 433MHz learning 2 channel receiver is provisioned to accommodate code-hopping technology that ascertains a secure link between devices that cannot be duplicated from remote-to-remote as seen in the legacy Binary, Trinary, French range of products. This is achieved by utilizing KEELOQ protocol, which is a Trademark of Microchip Technology Inc. The unit is a two channel learning receiver module that can learn up to 20 unique code-hopping remote transmitter buttons, and it is equipped with two 220VAC relays each capable of switching 220V at 5-10 Amps typically, which makes the receiver unit suitable for many applications. The versatility of this unit gives rise to many different applications. Pairing or learning remote controls into the receiver unit is simple and takes seconds to accomplish provided that the devices are within proximity of one another. The Learning 2 Channel Receiver (433MHz) is easily identifiable by the blue plastic enclosure. This unit requires 220VAC to power it, and subsequently to that fact, the product requires a step-down transformer to power and operate it’s relays.
- [Learning 3 Ch Receiver (433MHz)](https://martin-electronics.co.za/?product=learning-3-ch-receiver-433mhz) - The SENTRY 433MHz learning receiver is provisioned to accommodate code hopping technology that ascertains a secure link between devices that cannot be duplicated from remote-to-remote as seen in the legacy Binary, Trinary, French range of products. This is achieved by utilizing KEELOQ protocol, which is a Trademark of Microchip Technology Inc. The unit is a three channel receiver module equipped with three 10 Amp potential-free relay contacts, which are suitable for many applications. The versatility of this unit gives rise to many different applications. Pairing or learning remote controls into the receiver unit is simple and takes seconds to accomplish provided that the devices are within proximity of one another. The Learning 3 Channel Receiver (433MHz) is easily identifiable by the blue plastic enclosure.
- [Nova Compatible 3 Button (433MHz)](https://martin-electronics.co.za/?product=nova-compatible-3-button-433mhz) - The SENTRY Nova Compatible 3 Button 433MHz Radio Frequency Transmitter Learns and functions as the standard Nova remotes do.
- [Nova Compatible 4 Button (433MHz)](https://martin-electronics.co.za/?product=nova-compatible-4-button-433mhz) - The SENTRY Nova Compatible 4 Button 433MHz Radio Frequency Transmitter Learns and functions as the standard Nova remotes do.
- [Sherlo 1 Button Compatible (403 MHz)](https://martin-electronics.co.za/?product=sherlo-1-button-compatible-403-mhz) - The SENTRY Sherlo Compatible 1 Button 433MHz Radio Frequency Transmitter Learns and functions as the standard Sherlo remotes do.
- [Sherlo 3 Button Compatible (403 MHz)](https://martin-electronics.co.za/?product=sherlo-3-button-compatible-403-mhz) - The SENTRY Sherlo Compatible 3 Button 433MHz Radio Frequency Transmitter Learns and functions as the standard Sherlo remotes do.
- [Learning 3 Ch Receiver (403MHz)](https://martin-electronics.co.za/?product=learning-3-ch-receiver-403mhz) - The SENTRY 403MHz learning receiver is provisioned to accommodate Binary, Trinary, and French protocols. The unit is a three channel receiver module equipped with three 10 Amp potential-free relay contacts, which are suitable for many applications. The versatility of this unit allows it to communicate with remote controls encoded in Binary, Trinary, and French legacy codes and also gives rise to many different applications. Pairing or learning remote controls into the receiver unit is simple and takes seconds to accomplish provided that the devices are within proximity of one another. The Learning 3 Channel Receiver (403MHz) is easily identifiable by the black, red, and yellow stickers on the box and the black plastic enclosure.
- [M1 RF Receiver Module](https://martin-electronics.co.za/?product=m1-rf-receiver-module) - The SENTRY M1 Radio Frequency (RF) module is a compact superheterodyne receiver module designed to detect Amplitude Shift Keying (ASK) remote control transmitters operating at 433.925MHz. The Sentry M1 is a versatile communication board that is designed to interface directly to the I/O pin of any microcontroller or decoder IC (MC145028, HT12, ESP… etc). The module has an integrated data slicer, which provides clean demodulation (to TTL) levels of ASK signals typically generated by wireless remote controls. A level shifter may be required for use with microcontrollers that have 3.3V or lower I/O requirements.

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- [Robbie](https://martin-electronics.co.za/?gmwqp_enquiry=robbie)
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## Royal Templates

- [Online Course V1 Footer](https://martin-electronics.co.za/?wpr_templates=user-footer-online-course-v1-footer) - We manufacture a variety of compatible transmitters for your gate and garage automation, GSM communicators for mobile phone switching and monitoring, 220v remote control light switching, domestic sliding gate operator and wireless access control keypads. Facebook Youtube Whatsapp Instagram Quick Links Home Product Range Resource Centre Contact Support Terms & Conditions Privacy Policy PAIA Manual
- [Online Course V1 Header](https://martin-electronics.co.za/?wpr_templates=user-header-online-course-v1-header) - +27 11 433 4084 Address: 26 Kindon Rd, Robertsham, Johannesburg South, 2091 sales@martin-electronics.co.za Home Products Resources Contact Home Products Resources Contact
- [Online Course V1 Post](https://martin-electronics.co.za/?wpr_templates=user-single-online-course-v1-post) - Online Course V1 Post -May 10, 2024- Online Course V1 Post -May 10, 2024 – Online Course V1 Post -May 10, 2024 – Previous Post About Company Breakfast procuring nay end happiness allowance assurance frankness. Met simplicity nor difficulty unreserved allowance assurance who. Most Recent Posts All Posts Marketing Photography Science UX/UI Design Web Development
- [Online Course V1 Page](https://martin-electronics.co.za/?wpr_templates=user-single-online-course-v1-page)
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## Brands

- [Martin Electronics](https://martin-electronics.co.za/?product_brand=martin-electronics)

## Product categories

- [RF Remote Transmitters](https://martin-electronics.co.za/?product_cat=rf-remote-transmitters)
- [Dual Frequency Four Button](https://martin-electronics.co.za/?product_cat=dual-frequency-four-button)
- [433 Mhz Remotes](https://martin-electronics.co.za/?product_cat=433-mhz-remotes)
- [403 Mhz Remotes](https://martin-electronics.co.za/?product_cat=403-mhz-remotes)
- [Receivers](https://martin-electronics.co.za/?product_cat=receivers)
- [403 Mhz Recievers](https://martin-electronics.co.za/?product_cat=403-mhz-recievers)
- [Gate Automation](https://martin-electronics.co.za/?product_cat=gate-automation)
- [Gate Automation Accessories](https://martin-electronics.co.za/?product_cat=gate-automation-accessories)
- [Roll-Up Garage Operator](https://martin-electronics.co.za/?product_cat=roll-up-garage-operator)
- [Beams](https://martin-electronics.co.za/?product_cat=beams)
- [IR Beams](https://martin-electronics.co.za/?product_cat=ir-beams)
- [Security Systems](https://martin-electronics.co.za/?product_cat=security-systems)
- [4 Zone Alarm Panel](https://martin-electronics.co.za/?product_cat=4-zone-alarm-panel)
- [Wired PIR Sensor](https://martin-electronics.co.za/?product_cat=wired-pir-sensor)
- [Long Range](https://martin-electronics.co.za/?product_cat=long-range)
- [1 or 4 Channel Transmitter](https://martin-electronics.co.za/?product_cat=1-or-4-channel-transmitter)
- [I Channel Transciever](https://martin-electronics.co.za/?product_cat=i-channel-transciever)
- [Sliding Gate Operator](https://martin-electronics.co.za/?product_cat=sliding-gate-operator)
- [GSM](https://martin-electronics.co.za/?product_cat=gsm)
- [GSM Communicator](https://martin-electronics.co.za/?product_cat=gsm-communicator)
- [Wireless Access Keypad](https://martin-electronics.co.za/?product_cat=wireless-access-keypad)
- [Wireless Keypad](https://martin-electronics.co.za/?product_cat=wireless-keypad)