The Amprobe TMD-51 thermometer is a professional choice for HVAC/R technicians, electricians, research, industrial process, and quality control. The dual inputs allow easy super-heat and sub-cool temperature measurement as well as cut-out and in temperature measurements.
This Thermometer works well, has some bugs.
The Thermometer works well, however it has some bugs in the software. A couple of times when using it there was a lockup where it would not measure or turn off. The only way to get out of this is to remove the batteries and then reinstall them. The unit is accurate and responds well to changes in Ambient Temperature. It works well for measuring Sub-Cooling and Super-Heat. The two thermocouples must be insulated from each other or it generates error. The Fieldpiece ST-4 does not have this problem.
✔ Yes, I recommend this product.