With APP remote control design, this temperature humidity sensor is easy and convenient for you to use. This sensor has the function of sensing the temperature and humidity of the indoor environment to create a comfortable home living environment. It is constructed of ABS material. The length of the product is 69.5mm, the width is 24mm and the height is 18.5mm. The product is used to detect the temperature and humidity in the environment, and is suitable for home, living room, bedroom, baby room, etc. Item Name: Sensor Material: ABS Input Voltage: DC3V LR03 Quiescent Current: Less Than or Equal to 10uA Alarm Current: Less Than or Equal to 15mA Low Voltage and Undervoltage: Less Than or Equal to 2.5V Zigbee Working Frequency: 2.400GHZ-2.484GHZ Detection Temperature: -10 Degrees Celsius ~ +60 Degrees Celsius Detection Humidity: 0-100%RH Working Temperature: -10 Degrees Celsius ~ 50 Degrees Celsius Working Humidity: Maximum 95%RH Features: Sensing Temperature Humidity, Portable, Convenient Size Details: 6.95cm x 2.4cm x 1.85cm/2.74" x 0.94" x 0.73" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Note that this device have to connect Zigbee gateway to work. You must have a Zigbee gateway that is connecting WiFi success before uses this sensor. It detects temperature and humidity once for every 5 minutes. It reports datas to Cloud once for very 30 minutes (but it also reports at once if detects changing over plus or minus 0.6 degrees Celsius of temperature or plus or minus 6%RH of humidity, otherwise, keep 30 minutes). How to Use: 1. Push the mounting bracket upward and take out the bracket, then insert the battery. 2. Put the battery into the battery bin and place it according to the graphics in the battery bin. After two batteries are loaded, the indicator lights are always on and then off. 3. Click enter Gateway homepage by APP - Add devices - Add new devices - Long press RESET key of sensor by a pin for more than 5 seconds until the indicator light flashes quickly - Discovering nearby devices - Confirm 4. It shows an icon on homepage when the temperature humidity sensor connection success with Gateway, click icon to check datas of temperature and humidity. Package Includes: 1 x Sensor