Ajax Rex 2 Signal Extender – White

Part Number: AJ-REX-EXT-W Categories , ,

The Ajax Rex 2 Signal Extender expand the boundaries of the protected area and give more freedom to place security system devices. By connecting all or part of the devices 1 to ReX 2, you will ensure the security and automation of a business centre, estate, warehouse complex, or a large production facility.

Radio channel range extender
Device type
Installation method


Hub 2 and Hub 2 Plus with OS Malevich version 2.12 and higher
Alarm signal delivery time
0.3 seconds
Maximum connected
devices (in a system with
one range extender)
Hub 2 — up to 99
Hub 2 Plus — up to 199
Max number of connected
ReX per hub*
Operating system
OS Malevich
Power supply


110−240 VAC or 12 V from 12V PSU for Hub 2/Hub 2 Plus/ReX 2
Built-in backup battery Li-Ion 2 Ah
Up to 38 hours of backup battery life
Jeweller radio technology


Communication range with the hub — up to 1,700 m in open space
Communication range with detectors — up to 1,700 m in open space, depending on the detector model
Two-sided communication between devices
Operating frequencies:
866.0 – 866.5 MHz
868.0 – 868.6 MHz
868.7 – 869.2 MHz
905.0 – 926.5 MHz
915.85 – 926.5 MHz
921.0 – 922.0 MHz
(depends on the region of sale)
Auto-regulated radio signal power: ≤ 25 mW
Blocking encryption based on the AES algorithm
Detector ping interval — 12–300 seconds
Frequency hopping
Operating temperature range
From −10°C to +40°C
Operating humidity
Up to 75%


Fraud protection
Jamming notification
163 × 163 × 36 mm
330 g


24 months from the date of sale
Complete set


ReX 2
SmartBracket mounting panel
Power cable
Installation kit
Quick start guide
Service life


10 years