Infrared technology specially designed to take the forehead/ear temperature of a person. Allows for continuous temperature taking(Forehead mode). Allows more quickly detect the body temperature by eardrum(Ear mode). Capable of storing 20 sets of measurement data. Bi-color Back-lighted LCD Screen. Providing two temperature modes°F/°C. Fever alarm function for temperature test. LCD display resolution(definition):0.1. Range of measurement: Forehead mode:32.0℃– 42.2℃. Ear mode:0.0℃– 100.0℃ Measurement error: