NON-CONTACT AND FAST: The non-contact infrared temperature measurement is more convenient and easy, 0.1s fast testing, avoiding cross infection. HIGH ACCURACY: This infrared digital thermometer has fast measurement capability, making sure the error precision controlled within 0.1-0.2C. HIGH TEMPERATURE WARNING: When the temperature is over 37.3C, it will be showed on the display screen and produce prompt, reminding the abnormal situation right now. EASY TO INSTALL: There are several ways to install this thermometer; you can fix it on the tripod with its screw hole, or hanging it on wall, or stick to wall with adhesive tape. APPLICABLE SCENARIOS: Our thermometer is flexibly suitable for many places, such as train station, bus stations, schools, supermarket, theaters, companies, factories or other crowded places. Specification: Color: White Material: Plastic Accuracy of measurement: 0.2C Response Time: 0.1s Temperature Unit: C/F Counting Capacity: 999 times LCD Display: 0.8inch LCD screen Alarm Function: Flash+sound alarm for about 10 seconds Measurement distance: 10cm-15cm Power supply: 1*18650 battery (Not Included) Working temp: 10C-40C Standby way: non-working time 8s standby Temp measurement range: 32-42.9C Product size: 170x112mm Package Includes: 2 x Infrared Thermometer 2 x USB Cable 4 x Screws 4 x Hanging Sticker 4 x Expansion Pipe 2 x User Manual Note: Transition: 1cm=10mm=0.39inch Please allow slightly 0-1cm difference due to manual measurement. Colors can appear different depending on light and how the listing is viewed. Thanks for your understanding and attention. Wish you a pleasant shopping experience!