| Color | White |
SR-820DHS Independent toelectric smoke & heat alarm
Main Features:
Battery operated or AC power with backup battery
toelectric sensing technology
Lower battery indication
Loud 85dB audio alarm
Instant test button
MCU processing
Test and hush button
Interconnection function
57ºC(135ºF)fixed temperature alarm
Execute criterion: EN54-4,UL539,EN14606; UL217
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