REX

The AJAX ReX is a wireless indoor radio signal range extender that boosts Jeweller protocol communication between AJAX hubs and up to 99-149 detectors (depending on hub model), extending coverage up to 1,800m in open space.
It features frequency hopping for anti-jamming, tamper protection, and up to 35 hours of battery backup, with up to 5 ReX units connectable per system (Hub Plus/Hub 2) to cover massive areas like multi-building sites up to 35 km².
Key Specifications
Feature
Specification
Connectivity
Jeweller 868 MHz (GFSK modulation) ​
Range
Up to 1,800m (open space); 0.3s alarm delivery 
Power
110-240V AC; Li-Ion 2Ah backup (35 hrs) ​
Compatibility
Hub, Hub Plus, Hub 2 (OS Malevich 2.7+) 
Max Devices
Hub: 99; Hub Plus/Hub 2: 149 ​
Features
Jamming detection, tamper, frequency hopping ​
Dimensions
163 × 163 × 36 mm; 330g 
Temperature
-10°C to +40°C; up to 75% humidity ​