The Mainstays Refigerator & Freezer Thermometer'temperature Range: -40° to 80°F / -40° to 27°C. Dimensions: 1.25 x 4.75 x 0.75 in Safe temperature zones indicated on dial face. Easy to read shatterproof magnified face Suction cup or hanger mounting.In addition to our 100% Satisfaction Guarantee,..