Feature:1. Lightweight and portable, stable performance, temperature and humidity can be measured.2. Builtin 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: 1Humidity Range: 0 percent -100 percent RHHumidity: Accuracy 4 percent RHDew Point Range: -20-50Dew Point: Accuracy 2Wet Bulb Range: -20-50Accuracy of Wet Bulb: 2Power 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 or Selection: SupportData Retention Display: SupportMaximum or Minimum: SupportAutomatic Shutdown: SupportAlarm Setting: SupportAutomatic Shutdown: Support.Package List:1 x Temperature Humidity Meter (Battery Not Included)1 x Instruction