Ajax MultiTransmitter Jeweller
Keep your existing wired sensors and control them from the Ajax app. The Ajax MultiTransmitter connects up to 18 third-party wired zones to any Ajax hub over encrypted Jeweller radio. You get instant alerts, remote setup, and strong tamper protection without rewiring the building.
Ajax MultiTransmitter Jeweller 18-Zone Security Module
Upgrade Your Existing Wired Alarm System
Replacing an entire wired alarm installation can be expensive and time-consuming. The Ajax MultiTransmitter Jeweller offers a smarter upgrade path.
How It Works
The module connects compatible third-party wired detectors to an Ajax security system, then communicates events wirelessly to the Ajax hub using the secure Jeweller protocol.
Connect Up to 18 Wired Devices
- 18 wired zones for integrating compatible devices:
- Motion detectors
- Door contacts
- Panic buttons
- Glass-break detectors
- Fire detectors
- Gas detectors
- Water-leak detectors
Ajax recommends one detector per zone for clear individual event identification.
Keep Your Existing Security Hardware
For suitable installations, MultiTransmitter extends the useful life of existing wired equipment, while giving you access to Ajax system management and notifications. Manage connected devices through the Ajax app, with alarms and events transmitted to the hub for monitoring.
Long-Range Wireless Communication
The Jeweller radio protocol connects MultiTransmitter to a compatible Ajax hub over a range of up to 2,000 metres in open space. (Actual range depends on walls, floors, building materials, and other obstacles.)
Reliable Power and Backup
- 100–240V AC mains power, with support for a 12V backup battery (sold separately)
- Supplies 10.5–15V DC to compatible wired detectors, up to 1A total current
Built for Professional Installation
Two tamper switches detect attempts to open the casing or remove the module from its mount. MultiTransmitter is built for indoor installation by a qualified security or electrical professional.
Key Features
- 18 wired zones. Connect many third-party sensors, and several devices can share one zone.
- Flexible wiring. Supports NC, NO, EOL, 2EOL, and 3EOL connections. 2EOL/3EOL need firmware 2.13.0 or later on a compatible hub.
- 15 event types. Includes intrusion, fire, gas, flood, glass break, panic, tamper, and custom events.
- Jeweller radio. Up to 2,000 m to the hub in open space, with two-way, encrypted, frequency-hopping communication.
- Long cable runs. Up to 400 m between the module and sensors with 0.22 mm² cable.
- Power for your sensors. Two power lines plus a separate fire-detector line, delivering 10.5–15 V and up to 1 A in total.
- Backup battery support. Takes a 12 V battery of up to 7 Ah for outage protection.
- Tamper protection. Two tamper switches and anti-spoofing authentication.
- Full app control. Works with the Ajax mobile and PRO apps.
- Two colours. Available in white or black.
Technical Specifications
| Specification | Ajax MultiTransmitter Jeweller |
|---|---|
| Product type | Wireless integration module |
| Application | Connect third-party wired detectors to Ajax |
| Wired zones | 18 |
| Connection types | NO, NC, EOL, 2EOL, 3EOL* |
| Wireless technology | Jeweller |
| Radio range | Up to 2,000 m in open space |
| Radio modulation | GFSK |
| Frequency | Region-dependent; 868.0–868.6 MHz is one supported band |
| Power supply | 100–240 V AC |
| Backup power | 12 V DC battery |
| Maximum backup battery capacity | Up to 7 Ah |
| Detector power output | 10.5–15 V DC |
| Maximum total detector current | Up to 1 A |
| Tamper protection | 2 tamper switches |
| Operating temperature | -10°C to +40°C |
| Operating humidity | Up to 75% |
| Protection rating | IP40 / IK06 |
| Dimensions | Approximately 192 × 238 × 100 mm |
| Weight | Approximately 0.8–0.9 kg, depending on version |
| Installation | Indoor, wall-mounted |
| Backup battery | Not included |
| Warranty | 2 years, subject to manufacturer’s terms |
