Maverick ET-68 Redi-Fork Digital Probe Thermometer with Detachable Tines and Rapid Read Tip Features: Take the guesswork away! Instantly check readiness and doneness of food with the new Rapid Read Tip. Never overcook or undercook again! Auto-on operation display turns on automatically when the temperature of food reaches 113ºF. Just set temp & Redi-Fork beeps when food is ready! Helps avoid E. Coli by cooking to proper temperature. Timer included, digital 24 hour/min./sec. count up & count down. Measures in both ºF & ºC. Two AAA batteries included.