The Traceable® Wide-Range Big-Digit Refrigerator Thermometer has a 7/8" high display and a switchable range from –3.8 to 199.9°F and –19.9 to 110.0°C with a resolution of 0.1°. Accuracy is ±1ºC in the range 0 to 25°C and ±1.5°C outside range. Ultra™ model accuracy is ±0.5°C at tested points. The product may be placed anywhere using four methods: Always-hold™ secure suction cup, place-anywhere Velcro®, stand and hanger. The display updates every 30 seconds, and the product's wide range makes it ideal for storerooms, labs, offices, hoods and outdoors.