1、This smart smoke sensor is made of high‑quality ABS material, which can be used for a long time. 2、Support for TUYA and WIFI, when there is a fire alert to create a strong smoke, the sensor can receive the notice about danger or alarm anytime, anywhere, by phone. 3、Add a associated device, when the smoke sense or temperature is high, the alarm sends a signal, and the infrared rays turn off all the equipment in the room. 4、Mainly used in home, warehouses, enterprises, schools, hospitals, and restaurants, etc. 5、This smoke sensor has been exquisite craftsmanship and professional processing, and the quality is guaranteed. 1 x Smoke Alarm1 x Mounting Frame2 x Screw2 x Expansion Tube1 x Manual  Item Type: Smoke AlarmMaterial: ABSProduct Color: WhiteStatic Current: <10uAAlarm Current: <100mAWork Temperature: 0℃ - +50℃Alarm Sound: >80dB