K3 is a wall mounted forehead non-contact thermometer, no need to hold device to avoid cross infection. Using new chip, the induction time is faster (0.5s), the pass rate is greatly improved (50 people /min). High temperature measurement accuracy:±0.2 (34~45°C). With warning light for detection failure and abnormal temperature. It can be connected to USB power supply, charging treasure, 4 AA batteries. High-definition LCD display, 5 meters viewing distance. Intelligent photosensitive forehead thermometer, can be Nail hooked/bracket fixed, etc. It can be applied in different occasions. Suitable for schools, churches, mosques, event centers, banks, parks, factories and high human traffic areas.