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 ...
