Infrared sensor reads temperature 4-6 cm from the center of forehead. No patient skin contact required. Large, backlit LCD display. 2 year service warranty. 60 second pulse timer, memory recall button, C/F scale conversion button. Measurement feedback system detects proper operating distance for accuracy. Takes approximately 3,000 readings on two AAA batteries. Due to sanitary concerns all PPE purchases are FINAL SALE. 4350574