Household Carbon Monoxide Detector

We are offering household carbon monoxide detector co alarm. Product description：
gas detected: carbon monoxide
electro chemistry type sensor power
supply: ac220vac110v12vdc24vdc(optional)
backup battery: 9v ordinary battery
working environment:
humidity: 25%-85%
temperature: 0℃-50℃
additional function: can work with exhaust fan and solenoid value or manipulator(optional)
alkaline battery life: about half a year
static current: ≤140μa
alarm current: 60ma
alarm volume: 85db
the responding time of this co alarm fully comply with the en50291 or cn specifications