Daytech Smoke Detector Fire Detector Smoke Sensor Alarm Come with Battery SM12

【📦 Package List】 ✅1 x Smoke Alarm ✅1* 9V Battery ✅2 x screws 【📜Specifications】 Alarm volume: 10 feet to 85 dB Round Size: R = 102mm, H = 31mm 【Description】 It is a fire smoke detector alarm, general purpose ideal for all areas: house, shop, hotel, restaurant, office building, school, bank, library, computer house, and storehouse, etc. Alert and warn people to stay far away from the dangerous fields when it detected smoke. The detector adopts the special structure design and ASIC, has the dustproof, mothproof, and anti outside light interference feature, etc.