house kitchen wireless interlinked smoke alarms optical smoke alarm More detail: https://www.firealarmfactory.com/interlinked-smoke-alarms.html more...
model no sr-820phw-ac operating voltage ac110/220v(9v backup battery) interconnection install within the radius of 200 m hush function yes code form 2262 sending frequency 433mhz radio distance 200 m(open area) sensitivity 2.06%ft±1.3%ft sound level 85db/3m installation wall or ceiling mounted workin more...
Intrusion Detection: When an unauthorized intruder triggers the sensor or the system, through motion sensor, smoke sensor or gas sensor etc, the alarm is sounded at the local spot. Also, the Automatic Telephone Dialler starts dialing immediately and coveys a telephonic pre-recorded message to the programmed n more...
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