brand new and high quality Features: Non Contact & Quickly Mesurement & Warranty1S fast temperature measurement within 2-3.94 inches. Non-contact infrared measurement, while avoiding for cross infection. C / F adjustable & HD-LED screen and of this infrared thermometer for humans are easily switchable. Press mode switch hole then select C or F. The large HD-LED screen allows you to see the readings better. Alarm Function & Accurate ReadingsA green light will indicate that their temperature is within a normal range, and a flashing red light and audible alarm will indicate that the person has a high temperature when the temperature is over high>38.5 or 101.3 . Accuracy is 0.2/ 0.4. Widely UsedHigh-definition display, Wall-Mounted Body Thermometer can be stationed in offices, supermarkets, shops, restaurants, apartments, hotels, train stations, community centers, and building entrances.To detect the temperature, you only need to be close enough to the thermometer and the sound is crisp, which is really convenient. 2 Ways of Power Source & 2 Installation MethodIt comes with a Type C cable and needs to be kept plugged in. you do not need a battery. because if you stick it on the wall, it will be troublesome to replace the battery. If you want to use a battery, please buy a AA lithium battery by yourself(NOT INCLUDE). Can be hung / double-sided adhesive tape / bracket fixed. Specification: A:Basics B:bluetooth Measurement Method :Without Contact on the Forehead Screen: Digital Display Accuracy : 0.2 Degrees Response Time: 0.5s Abnormal Automatic Alarm :Flash and Voice Measuring Distance :5cm ~ 15cm Power Supply Battery:(AA)(NOT INCLUDE) or DC5V 1A Charging :Type-C DC5V 1A Measuring Temperature :10C~42C System languages: English, Japanese, Portuguese, Korean, Spanish, German, French, Arabic, Russian, Italian, Chinese Note:1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes(without retail package): 1 x Wall-Mounted Infrared Forehead Thermometer set