Wireless Cordless Photoelectric Fire Smoke Detector Alarm Sensor Home Office Gadget for House Safety Security STH-86633

Wireless Cordless Photoelectric Fire Smoke Detector Alarm Sensor Home Office Gadget for House Safety Security STH-86633

US$ 14.64 Free worldwide shipping!
TinyDeal
Product Features: : Photoelectric sensor for early detection from all directions General purpose design, ideal for all areas Detects smoke by a couple of infrared diodes Alerts and warns people to stay far away from dangerous field when it detected smoke Adopts special structure design and ASIC, has dustproof, mothproof and anti outside light interference features, etc Principle of detecting is granule in the smoke can reflect infrared light, while infrared diodes are placed in the special chamber and the chamber can shield external light, but doesn't affect smoke going into it The diode can receive quite weak infrared light, when the smoke enters the chamber, diode can receive more and more light, when the smoke attains certain density, the detector can give out alarm signal. The emitting circuit adopts pulse signal to reduce the interference and lower power consumption Suitable for house, shop, hotel, restaurant, office building, school, bank, library, computer house and storehouse, etc Easy to install Working Voltage: DC9V-12V Color: White Net Weight: 183 g / 6.41 oz Size: 104 x 104 x 55 mm / 4.06 x 4.06 x 2.15 in Product Specifications:: Package Contents:: 1 x Smoke Alarm