Tuya Smart WiFi Smoke Detector sensor

This WiFi strobe smoke detector is the device which can detect smoke occurred at the beginning of a fire disaster and generates live strobe &sound alarm, at the same time, push alarm information to mobile app by WiFi.1. Technical Parameter Power supply： DC9V alkaline battery (no include 6LR61) Static current：<10uA Alarm current: <100mA Working temperature：0℃ ～ +50℃ Humidity：≦95%RH，no freezing Alarm sound：>80dB Low battery alert：≦7.0V±0.2V2. Mute & TestingMute: in alarm status, press the ‘TEST’ button to mute the buzzer, only the LED indicator flashes. Testing: in normal status, long press the ‘TEST’ button for 2s to trigger the sound & light alarm, an alarm message is pushed to the mobile APP.3. WiFi Configuration & NetworkingInstall the ‘Tuya Smart’ APP on your smartphone the first time you use the detector. Make sure your smartphone is connected to the WiFi.a) Launch the APP, click ‘Add device’---’ Security Sensor’---’ Sensor (WiFi)’ / "Smoke(WiFi)". b) Long