this is SMOKE ALARM use for home,
Smoke alarm work by 9V battery can use
1year.

the TOP quality smoke alarm use for home or car, work by 9V battery 

We design it according EN50194 standard, and it got CE approved from HK international testing company 4 years old.

We would like to cooperate with you of this business, kindly please feel free to contact with TRADE MANAGER Mr Bobby to get more informations.

You are welcome, we also supply OEM & ODM service.

Work by DC9V battery. the working time over 1 year