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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 Working environment -10~+50(â?¤95%RH No congelation) Dimension 128*38mm
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The SR-820PHW-AC fire detector operates on AC 110/220 V with a 9 V backup battery and supports wireless interconnection up to 200 metres in open areas using a 433 MHz, 2262 code format. It includes a hush function and photoelectric sensing with a sensitivity of 2.06 %/ft ±1.3 %/ft. The alarm produces a sound level of 85 dB at 3 metres. The unit is designed for wall or ceiling mounting, measures 128 mm by 38 mm, and is rated for -10 °C to +50 °C at up to 95 % relative humidity without condensation.
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Shenzhen Sumring Technology Co., Limited is a B2B supplier based in China, listed on Global Trade Plaza since October 2026. Use Inquire now or Chat with supplier to ask Shenzhen Sumring Technology Co., Limited for prices, specifications and documents for Fire Detector/smoke Detector Electronic Circuit.
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