HIGHLIGHT [ Tuya Smart ZigBee Smoke Alarm ] - A Tuya ZigBee Wirele Gateway Hub is a must have for working with the smoke alarm sensor as well as a variety of ZigBee smart products that have proven to be a bridge and control center for smart homes and games, an irreplaceable role for all ZigBee -Products and realizes the entire connection of your house Simply add the sensor to the ZigBee hub after adding the hub to the Smart Life / Tuya app.[ Profeional labyrinth design ] - Supports rapid fire detection, ensuring high sensitivity to smoke and temperature, effectively reducing the false positive rate and making police more accurate. The preferred flame-retardant material shell is used, which has the properties of radiation resistance. Heat resistance and impact resistance. The smoke detector also offers a live alarm and a flash of light.[ App push notifications and control ] - Compatible with Smart Life and Tuya App enables the timely detection of fire or smoke hazard as well as real-time notifications on your smartphone. You do not have to be connected to the alarm host, which can work independently with a connected ZigBee hub for information about the alarm situation. And even a low battery indicator in the smart phone app.[ Low power design and long battery life ] - available for this new version of ZigBee with instant low voltage monitoring functionality.[ Self-Test,Manual Muting & Wide Application ] - The remote self-test for smoke safety offers a lot of convenience and manual muting. It is intelligently supported by the smartphone app with alarm situation, together with the intelligent button for testing and manual sound silence, which applies to residential and shopping centers. Warehouses etc. with a potential fire hazard.[ Long Range Real Time Voice Alarm Prompt ] - This intelligent smoke detector has a wide monitoring range of 3m and intelligently and quickly sends out more than 85dB alarm tone and automatically sends notification to your app. SPECIFICATION -- Communication Mode:ZigBee-- Operating Power:DC 3V(CR123A)(include)-- Sound Level:85dB/3M-- Monitoring Range:3m ahead-- Working Temperature:-10~+55-- Working Humidity:10%-95%RH-- Installation:Bracket