Description: Non-contact automatic temperature and disinfection, wall mounted, no need to be handheld; avoids cross-infection,make health more secure High temperature measurement accuracy, accuracy tolerance: +/- 0.2 (34 ~ 41.9 degree C) With warning of light failure detection and warning of abnormal temperature light, When the human body temperature exceeds 37.3℃, the device will issue an alarm to remind the surrounding people Can be connected to USB power source, or add-on lithium battery (not included) Small, Sensitive and Portable Can be applied in different occasions, Like Office / Metro / Home / Supermarket / Shop / Community / Entrance etc. Specification: Model: K1 Type: non-contact Induction distance: 5-8 cm Induction time: 0.5 seconds Measuring temperature range, 34.0 ℃ to 41.9 ℃ Accuracy: + / - 0.2 ℃ Suitable for: Students, Children, Adults, Elderly Power supply: USB power supply or 4 AAA batteries(Not Included) Size: Approx. 20cm x 12cm x 5cm Package Includes: 1 Piece Wall-Mounted infrared Forehead Thermometer Note: 1.Please allow 1~3 cm error due to manual measurement, thanks. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thank you！