Review on Digi Sense Calibrated Digital Thermometer Bottle by Black Croom

I had to test an old fridge from where I bought it to see how quickly I had to replace it, but all the cheaper thermometers at hardware and kitchen supply stores are junk. This has been pre-calibrated and has a probe in the bottle so the temperature doesn't drop when you open the door to check the temperature. The fridge is okay, the thermometer was worth every penny.