Review on 🌡️ Thomas 4239 Traceable Refrigerator Thermometer with 2 Bottle Probes, Hi-Accuracy, -58 to 158 degrees F by Richard Sallah

I am disappointed that the calibration certificate expires in less than 7 months. This unit was originally calibrated and certified in February 2016 but wasn't shipped to me until late July 2017. It's old stock and it's important if you buy it because it has a calibration certificate. Now I have to buy another one in 7 months, no closer to 2 years. Consider this when making your purchasing decision if it's important to you.