Specifications:

1.Unit Size:Φ140X41mm
2.Working Current:
1-Static Current:≤25uA
2-Alarm Current: ≤45mA
3.Operating Voltage: DC 9V Battery
4.Alarm Sound: ≥85dB(3m)
5.Ambient Temperature: -10°C~60°C
6.Ambient Humidity: ≤95%RH
7.Sensor:Combination Optical,Carbon Monoxide Sensor
8.Low Battery Alert Remain: 7-15 days

9.Wireless:RF:315/433MHZ,IC: IC  2262 or1527 
10.Alarm Density:
1-Co: 30ppm,alarms not activate within 120minutes 
50ppm, alarms within 60~90 minutes
100ppm, alarms within 10~40 minutes
300ppm, alarms within 3 minutes
2-Smoke: 1%~5%/FT OBS