This thermometer features a digital display, beep when ready, low battery indicator, results in 30 seconds, for oral or rectal use, peak hold, auto shut-off, memory of last reading, water resistant and is child safe. They feature high accuracy temperature measurement in a range of 89.6 to 107.6 Fahrenheit and are FDA approved. . Complies with FDA. 0.75" W x 5" L x 0.31" D
