IRT 3020. Includes thermometer, protective cap, 21 disposable lens filters, 1 battery. No. 1 brand among pediatricians and moms (Based on survey of pediatricians in the United States and syndicated ear thermometer data). Fast one second reading. Professional accuracy. Why measure in the ear? The ear canal is the best site to measure a fever because of its close proximity to the eardrum, which shares the blood supply of the brain's temperature control center. This site allows for a more accurate reflection of the body's core temperature. Fast - 1 second reading. Memory function recalls the last temperature reading. Always replace disposable lens filters to maintain accuracy and hygiene. Replacement lens filters model LF 40. Questions or comments? 1-800-327-7226. www.kaz.com/braun. Meets the American Society for Testing and Materials (ASTM) accuracy requirement specified in ASTM standard E1965-98, as it pertains to infrared thermometers. 3 year limited warranty (see use and care manual inside for details). Contents: Braun ThermoScan Ear thermometer; protective cap; 21 disposable lens filters; 3 volt lithium battery. For home use only. Suitable for all ages. Designed in Germany. Made in China.