Does the job.

I do refrigeration work for a living. This thermometer is pretty darn accurate. I stuck it in a glass of ice water and a measured 32.2°. Then I compared it with another thermometer and they were both within half a degree. The price is a little steep, but I guess thats because its a start up company. It ships very quickly. It only took two days to get the probe. The only complaint I have is that I have to take my phone out of its case in order to plug the probe into my phone. Id recommend this for anybody who uses a thermistor or temperature gauge on a regular basis.

Stone Tone about iCelsius