Feature:1. Lightweight and portable, stable performance, temperature and humidity can be measured.2. Built‑in Bluetooth, which can be connected to mobile phones and controlled by APP.3. Support dew point temperature measurement, wet bulb temperature measurement, high accuracy, low power consumption.4. The LCD screen with backlight allows data to be read even in a dark environment.5. Suitable for factories, laboratories, warehouse management, food hygiene, air conditioning systems, etc.Specification:Item Type: Temperature Humidity MeterMaterial: ABSAmbient Temperature Range: -20℃~70℃ (-4 ~ 158℉)Ambient Temperature Accuracy: ±1℃Humidity Range: 0%~100% RHHumidity: Accuracy ±4% RHDew Point Range: -20℃~50℃Dew Point: Accuracy ±2℃Wet Bulb Range: -20℃~50℃Accuracy of Wet Bulb: ±2℃Power Supply: 3 x 1.5V AAA Battery (Battery Not Included)Working Current: 13mA, 17mA (Backlight)Response Time: 30SBluetooth Communication (Application): SupportRecord 999 Sets of Data: Support℃/℉ Selection: SupportData Retention Display: SupportMaximum/Minimum: SupportAutomatic Shutdown: SupportAlarm Setting: SupportAutomatic Shutdown: Support.Package List:1 x Temperature Humidity Meter (Battery Not Included)1 x Instruction