Description: [Mini temperature and humidity Monitorwider range of use] Our temperature and humidity sensor is mini-sized andweighs only 21g, saving space. And it comes with a lanyardso you can hang it anywhere you want[Smart App Control] TUYA Bluetooth Thermometer Hygrometer can help youmonitor the changes in temperature and humidity in real-time ,supporting smart functionssuch as remote monitoring andtemperature and humidity charts[High Accuracy] The Thermo-hygrometers always provide you with the latest andmostaccurate temperature and humidity changesTemperatureaccuracy ( error value ) is 0.54F / 0.3C ,and humidity accuracy ( error value ) is 3% RH[Long Standby] The greenhouse thermometer and humidity have a built-inbutton battery CR2450 , which is durable and has a service life of 8-12 months . The APP displays the battery level in real timeSpecifications:You can view the recent temperature andhumidity records on the APP , and the histogramand curve graph provide a clear data change trajectory .Range Temperature: -10~50c (14F~122F); Humidity: 20%~99%RHAccuracy: Temperature 0.1c (0.1F); Humidity: 0.1%RHError: Temperature: 0.5C (32.9F); Humidity: 5%RHPower supply specifications: 1 3V CR2450 button battery (included in the factory)Wireless connection type: BluetoothAPP: Tuya SmartMaterial: ABScolour: WhitePackage Contents:1 x Temperature and hygrometerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.