Medicare Lifesense T2 Digital Thermometer is perfect for fast, accurate measuring of temperature. Suitable for oral, underarm or rectal use this thermometer is waterproof and has a 10 second fast measurement time - 6 times faster than traditional thermometers. • Auto shut off - 10 minutes after use • 200 hour / 12-month battery life • Memory recall • Flexible tip • Fever alarm Takes LR41 battery