A safe alternative to glass thermometers. Clinically accurate. Memory recalls last reading. Waterproof. The Kaz Digital Thermometer makes temperature taking faster and easier than using glass thermometers. Mercury free. Oral or rectal. Features: fast and accurate - a reading within +/- 0.2 degrees F in 60 seconds; memory recalls and displays last temperature taken; automatic shutoff for longer battery life; waterproof for easy, more thorough cleaning; no glass to break, no fear of mercury poisoning.