Features Temperature Humidity Sensor The sensor can monitor the temperature and humidity in real time. You can display the subtle changes of temperature and humidity on the LCD and the app. A Convenient Sensor This humidity sensor can be used in your bedroom, living room, office, etc., which helps to create a more comfortable environment. Wide Compatibility The sensor can be used with a variety of smart assistants. You can let your smart home run automated processes via it. Push Notifications When the indoor temperature and humidity is above or below normal, the sensor will send a push message to remind you about the application. Measuring Ranges The thermometer has a wide measuring range of -10℃~50℃ and 0%-99% relative humidity, and also has high accuracy when testing. Specification: Item Type:Temperature Sensor Wireless Protocol: For Bluetooth 4.2 Product voltage: DC 2.5V-3V Temperature measurement range: -10°C ~ 50°C. Humidity measurement range: 0% - 99% relative humidity. Power supply: CR2032 button battery 50 mAh, supplied with built-in battery. Package list: 1 x temperature sensor. 1 x user manual (English language not guaranteed) Package List 1 x Temperature Sensor 1 x User Manual