Smart Temperature Sensor SPECIFICATION: Battery typeAA*2 pcs Standby current60.5uA Working temperature-10C-60C14-140 Storege humidity0%-90% Storege temperature-10C-60C14-140 Lgiht intensity detect range0Lux-157000Lux Size84mm*55mm*32mm ATTENTION 1. Battery is NOT included in package, pls buy the battery (AA*2pcs) in local store. 2. This device have two version: Wifi version and Zigbee version. Zigbee version should work with Tuya Zigbee Hub. 3. To save power in standby mode, the device is in sleep mode (does not communicate with APP). When the temperature or humidity change reaches the seting limit value, the device will send data to the APP and synchronize the data. 4. Before setting parameters (such as temperature unit, alarm clock, temperature/humidity alarm) in the APP, please short press the SET"button on device to wake up it first. Otherwise, it may not be possible to save setting or delay in the APP.