"YC9021 Fridge & Freezer thermometer with Easy select switch. °C / °F button to switch between Centigrade and Fahrenheit with Max / Min Temperature records Count Timer ( with Reset button ) . Easy-to-Read, Large digits display. Temperature in °C or °F (Measuring range: - 30 C to 50 C ( - 22 F to 122 F ) Temperature with high Accuracy (±1°C / ±2°F). Safe Zone Temperature Monitoring function with ( OK or HI ) Display. 4 Easy Installation Options: Folding Stand / Magnet on the Back / Suction Cup / Folding Hang. Product Dimensions: 60 x 10 x 60 mm / 6 x 1.0 x 6 cm / 2.37 x 0.40 x 2.37 inches LCD Display Size: 35 x 45 mm / 3.5 x 4.5 cm / 1.38 x 1,78 inches Batteries: 1 x CR2032 (inclusive)"