Review on XLX Digital Microcomputer Temperature Controller for Thermographic Testing & Inspection by Mark Jefferson

First, it's great. I have 2 units and 100% failure in 90 days, temperature readings started to fluctuate by up to 12 degrees Celsius. The 2nd menu item enables calibration, but appears everywhere after each calibration. Tried a few resets and still the same. a real slacker because it worked well. Spend the extra $7 and get an Ink Bird. it is fail safe and it failed before the thermostat secured it.