Get clinically validated accuracy from the No. 1 brand recommended by pediatricians1. The Braun ThermoScan@ 5 Ear thermometer's infrared technology provides temperature results in seconds. Its intuitive design comes with a pre-warmed tip for improved accuracy, and our user-friendly ExacTemp Stability Indicator confirms when the device is stable in the ear with a light and a beep. Built-in memory function recalls the last nine temperatures measured, and it includes 21 Hygiene Caps to help keep the lens clean and prevent obstructions. It comes ready to use with 2AA batteries and a proactive cradle/cap for storage. It's gentle enough for babies. Safe and easy to use on the entire family. Disclaimers: 1) Based on survey reporting that of surveyed pediatricians who recommend a brand of thermometers, Braun is the most recommended. 2) Loveys AA, Dutko-Fioravanti I, Eberly Sw, Powell, KR. Comparison of ear to rectal temperature measurements in infants and toddlers Clinical Pediatrics, Volume: 38 Issue: 8, page(s): 463-466. 1999. 3)Nimah Mm, Bshesh K, Callahan JD, Jacobs BR. Infrared tympanic thermometry in comparison with other temperature measurement techniques in febrile children. Pediatric Care Med. 2o06;7(1):48-55. (3) As eardrum shares the same blood supply with the brain's temperature control center, the hypothalamus.) - Netter FH, Atlas of Human Anatomy. Novartis Medical Education, East Hanover, NJ, 1997, PP 63, 95.