Item Type: Temperature Sensor <br>Wireless Protocol: For Bluetooth 4.2 <br>Product Voltage: DC 2.5V-3V <br>Temperature Measurement Range: -10℃ ~ 50℃ <br>Humidity Measurement Range: 0% - 99%RH <br>Power supply: CR2032 button battery 50mah, shipped with built in battery.<br>1、Temperature Humidity Sensor: The sensor can monitor the temperature and humidity in real time. You can view the subtle changes of temperature and humidity on the LCD and APP. <br>2、Push Notifications: When the indoor temperature and humidity are higher or lower than the normal value, the sensor will send a push message to remind you through the application. <br>3、Wide Compatibility: The sensor can be used with a variety of smart assistants. You can let your smart home run automated processes through them. <br>4、Measurement Ranges: Comes with a wide measurement range of -10℃ ~ 50℃ and 0% - 99%RH, the thermometer also has high accuracy in testing. <br>5、A Practical Sensor: Use this humidity sensor in your bedroom, living room, office, and so on, which will help building a more comfortable environment.1 x <br> <br>Temperature Sensor<p>1 x User Manual</p> Note: 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.