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Wireless Smoke Detector


The Ness RSM Radio Smoke Detector provides a photoelectric smoke alarm option for any Ness control panel with wireless options.


  • Photoelectric smoke detection technology
  • Test button to test sounder and transmitter
  • Delayed transmit function for testing
  • Sends Alarm, Restoral, Supervision & Low Batt signals
  • High volume sounder on-board
  • Compatible with all Ness receivers
  • One 9V Alkaline battery powers smoke detector and radio transmitter
  • Compact slimline housing