Item Type: Soil Temperature and Humidity Meter Product Material: ABS, Silicone Weight: Approx. 44g / 1.6oz Battery: 2 AAA Batteries (Not Included) Temperature: -10~60 (14~140) Humidity: 0-100% Package List 1 x Soil Temperature Humidity Sensor 1 x Manual 1Reliable Performance: The temperature and humidity statistics function, low battery reminder, and precise reading on mobile phone apps allow users to constantly understand the specific situation of the soil, solving the problem of inconvenient traditional temperature and humidity readings. 2Intelligent Monitoring: The intelligent monitoring is achieved through Bluetooth gateway and intelligent linkage, achieving intelligent monitoring of soil temperature and humidity, viewing dynamic changes, and automatic watering. 3Free Switching Between C and F: Choose your preferred reading unit, Fahrenheit or Celsius. Just open the back cover and press the button to switch freely. Long press the button to use for distribution network. 4Check Humidity and Temperature: Bluetooth connection, check the humidity and ambient temperature of green plants, lawns, and other soil. The top indicator light reminds users to water in a timely manner. 5Mobile Phone App: The mobile phone app displays soil temperature and humidity during the testing process, and the indicator light lights up at 3%. It is suitable for indoor potted plants, green plants, greenhouses, etc.