Ajax HomeSiren Wireless Internal Sounder ‑ Black


Wireless indoor siren that loudly notifies of an alarm during detector activation. It is installed indoors to warn of danger or deter intruders. The device notifies of detector activation with an audible alarm. Sound level and alarm length are set in the mobile application. Connector for external LED is available. It can be mounted outside your apartment or office to monitor the security system status. Ready to operate straight out the box: the battery is already installed, therefore there is no need to disassemble the siren. With one click, it can be connected to the hub in the mobile application. It can be mounted on the SmartBracket in just a few minutes.




  • Radio channel security sounder
  • Wireless
  • Indoors
  • Operates only with Hub, Hub Plus, Hub 2 and ReX
  • Volume Adjustable, 81−105 dB at a distance of 1 m
  • Alarm Adjustable, 3−180 s
  • Armed indicator status
  • Battery: Two CR123A batteries
  • Power supply voltage: 3 V
  • Battery life — up to 5 years
  • Jeweller radio technology Communication range with central unit — up to 2,000 m in an open space
  • Two-way communication between devices
  • Operating frequencies — 868.0−868.6 MHz
  • Self-adjusting RF output power — up to 20 mW
  • Block encryption based on AES algorithm
  • Device polling period — 12−300 s
  • From -10°С to +40°С
  • Permissable humidy Up to 75%
  • 75х76х27 mm
  • Certification Grade 2, CE
  • Replacement and repair within 24 months of the date of sale. Batteries are not covered under warrant