1Safe Measuring: Non contact measurement ensures the safety of front line personnel and greatly reduces the risks of infection. 2Alarm Function: The temperature measurement range is 32-42. When an abnormal temperature is measured, it will issue a warning. 3High Accuracy: Infrared temperature measurement has high efficiency, and the temperature measurement accuracy can get to 0.2. 4Flexible Using: Widely used in populated places such as offices, factories, hospitals, railway stations, commercial centres, etc. 5Easy to Install: Enables various installation methods, including hanging, sticking, bracket supporting and so on, very convenient. Item Type: Wall Mount Thermometer Accuracy: 0.2 (32~42.9, placed in the working environment for 30 minutes before use).Abnormal Automatic Alarm: Flashing + Beep Sound Automatic Measurement: Measuring Distance 5 ~ 10cm / 2 ~ 3.9in (approx.) Screen: Digital Display Charging Method: USB or 3 AA batteries or 1 18650 battery (delivered without batteries).Installation Method: Nail hook, bracket fixed.Ambient Temperature: 10~40 (15~35 is recommended).Infrared Measurement Range: 0~50 Response Time: 0.5S.Input: DC 5V.Weight: Approx. 325 g / 11.5 oz 1 x Wall Mount Thermometer (Battery Not Included) 1 x USB Cable 1 x Screw 1 x Anchor 1 x User Manual