PRO-STANDARD PRECISION: we're proud to have our products endorsed and tested by the acclaimed two star Michelin chef, Michel Roux Jr.. MIN / MAX TEMPERATURES: this fridge freezer thermometer shows actual temperatures, and tracks minimum and maximum readings over time. EASY READ LCD SCREEN: it makes monitoring in-fridge / freezer temperatures simple, accurately displaying from -20 to 60 (-4 to 140). USEFUL INFO: features a hanging hook and suction cup for easy display; powered by 1 x CR2032 battery (included); 5 year guarantee. Taylor Pro Digital Fridge & Freezer Thermometer, Blister packed in Grey