Power Source: DC3V (built-in Lithium Battery)
Standby mode:≤2uA
Alarming mode: ≤120mA
Alarm decibel≥ 85dB/3 m
Frequency: 868MHz
Transmission/Receiver distance ≥100m (open field)
Low battery signal
Push to Test and HUSH mode
Size: (diameter) 85x39mm