This rapid, 10 second response digital thermometer features a digital display, beeps when ready, low battery indicator, oral or anal use, peak hold, auto shut-off, memory of last reading and water resistance. The high accuracy temperature measurement is in a range of 89.6 to 109.2 Fahrenheit. They come packed in a protective case and are FDA approved. Complies with FDA. 1" W x 5 1/4" L
