SR-820PHWR-AC(AC Power& Back up battery) Wireless network & interconnected Smoke alarm(wireless network with alarm system and wireless interconnection with group detectors) SR-820PHR Wireless Photoelectric Smoke alarm Main Features:Wired or wireless interconnection function W...
Wireless Interconnected Heat and Smoke Combination Operating Voltage AC110/220V(9V Backup Battery) Interconnection up to 40 PC Smoke Detectors Alarm Temperature 57ºC Sensitivity 2.06%FT±1.3%FT Sound Level 85dB/3m Installation Wall or Ceiling ...
SR-820PHW-AC(AC Power& Back up battery) Wireless interconnected smoke alarm SR-820PHWR-AC(AC Power& Back up battery) Wireless network & interconnected Smoke alarm(wireless network with alarm system and wireless interconnection with group detectors) SR-820PHR Wireless Photoelec...