Telatemp’s 4048-TL Refrigerator/Freezer Thermometer is a general purpose probe thermometer ideal for most temperature monitoring applications. This digital instrument easily monitors temperature in liquids, baths, air/gas environments, incubators, refrigerators, or freezers. A triple display simultaneously shows high, low, and current temperature values. The MIN/MAX feature monitors high/low readings overnight, on weekends, or for any time period - a significant advantage over current reading-only glass thermometers. With a range of -58 to 158°F / -50 to 70°C and a resolution of 1° (F or C) and accuracy of ±1°C, minimum and maximum temperatures are stored until the memory is cleared.