ReX is the Ajax security system radio signal range extender, that expands the boundaries of the protected area. It controls the system devices connected to it enabling the user to place them at a considerable distance from the hub — in a multi-storey office, in a detached garage or in a large production plant. ReX doubles the signal range which potentially extends the Ajax radio coverage area up to 16 km²
Installation of regular range extenders can increase the risk of losing the alarm signal during transmission — so they become the weakest link in the security systems. But ReX takes the reliability and resilience of Ajax to a new level. After the hub, ReX is the second decision-making center. It integrates detectors into an autonomous group within the system. If the connection with the hub is interrupted for some reason, ReX will assume control: it will receive an alarm signal from the detector and activate the siren to attract attention to the incident and scare off the burglar.
 
Specs:
 
Maximum number of connected devices : Hub — 99, Hub 2 — 99, Hub Plus — 149
Max number of connected ReX per hub : 1
Power supply : 110~240 V AC, 50 / 60 Hz
Backup battery : Li-Ion 2 A⋅h (up to 35 hours of autonomous operation)
Tamper protection : Available
Frequency band : 868.0~868.6 MHz or 868.7~869.2 MHz 
Maximum radio signal power : Up to 25 mW
Radio signal modulation : GFSK
Radio signal range : Up to 1,800 m (any obstacles absence)
Operating temperature range : From -10°? to +40°?
Operating humidity : Up to 75%
Overall dimensions : 163mm x 163mm x 36 mm
Weight : 330 g