This product is a heat detector, which is based on the principle of detecting the temperature in the environment to work. With advanced SMT production technology and unique structure design, with anti dust, to prevent false positives, resistance to electromagnetic interference,andother functions,fromthe design to ensure the stability of the product.Thisproduct is suitable forfamilyhousing, buildings,villas,factories,shopping malls, warehouses. Office buildingsand other indoor temperature monitoring.