https://youtu.be/FZpF9zK2tmY?si=qb8YN798EQOSyVoJ K3 Handsfree Non-contact Forehead Body Infrared Thermometer Non-contact, no need to handheld, avoid cross-infection. High-Temperature Alarm, Abnormal automatic alarm: flashing +“Di Di” sound and Warning of light. Operation Instruction Temperature measurement: Front of the thermometer