The Vicks Baby Thermometer is designed specifically for measuring rectal temperatures of babies. Its compact design is easy to hold and the short probe helps guard against over insertion. Contains: 1 digital thermometer (battery included), storage case and 1 instruction book. This thermometer is for household use only. *Results may vary by individual. Average time in clinicals: 10.7 seconds on rectal. Accurate to +/-0.2°F. in water bath test. Meets ASTM standard E1112 as it pertains to digital thermometers. Vicks is a registered trademark of The Procter & Gamble Company.