The Marketlab Traceable Hi-Accuracy 0.01 Degree Thermometer is the perfect choice for getting simultaneous temperature readings in refrigerators and freezers. This thermometer utilizes temperature-buffered bottle probe sensors or chemical-resistant, waterproof sensors to get the job done. It also meets the CDC and vaccine thermometer requirements, making it perfect for medical laboratories. The bottle probes are sealed and filled with a nontoxic glycol, GRAS solution. This helps to eliminate rapid temperature changes when you open the refrigerator. Additionally, this thermometer may also be used for water baths, heating blocks, and incubators with a range of -58 to 158 degrees F and -50 to 70 degrees C. It has a resolution of 0.01 degrees and accuracy of +/- 0.3 degrees C, so you can be sure that youre always getting precision measurements.