K3 Pro Infrared Forehead Thermometer Price in Bangladesh. The infrared thermometer can detect people with high temperatures without the need for physical contact from a healthcare worker. A thermometer can accurately measure a person's body temperature in just one second. A green light indicates normal body temperature and red light at a high temperature. digital LED display, quick measurement temperature, 18650 lithium power battery, 1 manual package include, approx.156g weight battery not included, 140 x 93 x 93 mm dimension.