Review on URPRO Thermometer Thermocouple Temperature Instrument by Dustin Berry

Bought this meter with high expectations. 4 Type K thermocouples are used, observing correct polarity. All four began showing approximate temperatures, but the readings kept changing and random readings were visible. Not stable at all. At room temperature, the 72F readings change +/- 5-10 degrees, even reading -4.7, -2.5F. The readings varied on ALL four thermocouples, so this was a good thermocouple. I am extremely disappointed. The "manual" consisted of four tiny index card-sized pages. No website or technical support information. I would rate this less than one star if it were possible.