YK001 Infrared Digital Thermometer is used to measure the temperature of a human body from a distance of 2cm-4cm (max). It can store up to 100 records. Once the laser is aimed the temperature will be shown on the LCD display. This no-contact thermometer uses 2 x AA batteries (not included in pack) and has an auto power-off facility. Suitable for use at airports, railway stations, schools, home etc.