Wireless Smoke Sensor HEYI HY-623

– Power: DC 3V.

– Battery: 1 pieces CR 14505.

– Stand-by time: 2 Years.

– Current: 100mA.

– Alarming output: 85dB (within 1M).

– Wireless working frequency: 433Mhz.

– Wireless distance: 150m.

– Operating temperature: 0°C~+50°C.

– Humidity: <95% (RH).

– Weight: About 91g.