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Ajax ReX Range Extender WHITE - Up To 1.8km Range, Connects To The Hub 2 / Hub 2 Plus, 240VAC Powered **No Photo Verification**

by Ajax
SKU REX-W

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ReX is the radio signal range extender that boosts the range of all Ajax security system devices and manages their communication with the hub.

  • Transmits alarms in 0.3 seconds
  • Communicates at a distance of up to 1800 m
  • Operates up to
  • 35 hours on the back-up battery
  • Radio signal power Up to 25 mW
  • Operating temperature range From -10°С to +40°С


The maximum number of devices connected to ReXWhen using with Hub — 99, Hub 2— 99, Hub Plus — 149, Hub 2 Plus — 199
Max number of connected ReX per hubHub — 1, Hub 2 — 5, Hub Plus — 5, Hub 2 Plus — 5
Power supply110~240 V AC, 50 / 60 Hz
Backup batteryLi-Ion 2 A⋅h (up to 35 hours of autonomous operation)
Tamper protectionAvailable
Radio communication protocol with Ajax devicesJeweller



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Radio frequency band866.0 – 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.
CompatibilityOperates only with Ajax hubs featuring OS Malevich 2.7.1 and later



Doesn’t support MotionCam
Maximum radio signal powerUp to 25 mW
Radio signal modulationGFSK
Radio signal rangeUp to 1,800 m (any obstacles absence)



Learn more
Installation methodIndoors
Operating temperature rangeFrom -10°С to +40°С
Operating humidityUp to 75%
Overall dimensions163 × 163 × 36 mm
Weight330 g
Service life10 years