Maverick Housewares DT-01 Redi-Chek Professional Chef's Digital Thermometer, Black Quick read digital thermometer measures meat temperatures after 5 seconds Insert tip of the sensor into the thickest part of the meat (without touching bone or heavy fat areas); readings from -50F to +392F Sensor is in the tip; insert tip at least 1-inch deep for accuracy; reading should be taken after 5 seconds; Thermometer comes with free pocket case, battery installed and one spare battery; Battery lasts one year with continuous use Clean with damp soapy sponge; do not place in dishwasher; lifetime warranty