AJAX 1938184-18-NC1 Transmitter Jeweller Wireless Integration Module
The AJAX 1938184-18-NC1 Transmitter Jeweller is a compact wireless integration module designed to connect third-party wired detectors and devices to an Ajax alarm system. It is ideal for bringing wired outdoor beams, PIR detectors, gate contacts, panic buttons, liquid level detectors, gas leak detectors, electric fence outputs, and other NC/NO contact devices into the Ajax ecosystem.
Once connected, the Transmitter receives alarm or tamper signals from the wired device and sends them wirelessly to the Ajax hub using the secure Jeweller radio protocol. This allows users and monitoring companies to receive fast, accurate notifications through the Ajax system, while still making use of reliable third-party wired security devices.
The module is battery powered, compact, and easy to conceal inside a detector housing or installation box. It also provides a 3.3V power output for a compatible connected device and includes anti-sabotage protection such as tamper support, jamming detection, spoofing protection, and a built-in accelerometer to detect movement or attempted removal.
Key Features
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Wireless integration module for Ajax alarm systems
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Connects third-party wired devices with NC/NO contact output
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Suitable for outdoor PIRs, IR beams, gate contacts, panic buttons, electric fence outputs, gas detectors, leak detectors, and more
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Secure Jeweller two-way radio communication
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Alarm input and tamper input
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3.3V power output for compatible wired devices
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Battery powered using 3 × CR123A batteries
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Long wireless communication range in open space
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Quick pairing via QR code in the Ajax app
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Remote configuration through Ajax mobile or desktop apps
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Supports multiple event types for accurate alarm notifications
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Protection against spoofing and jamming
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Built-in accelerometer for movement/removal detection
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Compact design for discreet installation
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Compatible with Ajax hubs and range extenders
Ideal For
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Integrating wired beams into Ajax systems
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Connecting outdoor motion detectors
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Electric fence alarm output integration
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Gate, garage, and perimeter contact monitoring
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Panic button or auxiliary alarm integration
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Gas, water leak, or technical alarm monitoring
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Upgrading wired security devices to Ajax wireless communication
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Residential, commercial, and perimeter alarm installations
The AJAX Transmitter Jeweller is the perfect solution for installers who want to expand an Ajax system using existing or specialised wired detectors. It combines the flexibility of third-party wired devices with Ajax’s secure wireless communication, app-based control, and reliable real-time alarm notifications.
I treated 1938184-18-NC1 as the Ajax Transmitter Jeweller integration module. Ajax’s official product information describes it as a module for integrating third-party wired devices into Ajax, with NC/NO contact support, Jeweller communication, CR123A battery power, and a long open-space radio range; distributor listings for this SKU also list 3.3V output, 3 × CR123A battery power, and 100 × 39 × 22mm dimensions.
