Hardwired heat alarm
Power supply with wireless: AC 220V-240V 50Hz,with DC 9Valkaline battery back up
Power supply without wireless:Dc 9V replaceable battery
Conform to BS5446-2:2003
Alarm volume: ≥85dB at 3m
Big test button for easily weekly testing
Silence function: Approx.8 mins
Low battery signal alarm
Product life time > 10 years
Wired interconnection up to 40pcs
Wireless RF module optional,
wireless interconnection up to 40pcs
Push base for easy installation
Sze with wireless: φ140mm * 58.8mm
Sze without wireless: φ101mm * 36mm
Go West, Go East, Go YUANKY is best.