Review on Kamtop Digital Thermometer: Dual Channel Temperature Meter with LCD Backlight - Ideal for K/J/T/E/R/S/N Thermocouples by Pedro Movie

I bought it mainly to refill the air conditioner. Thermocouples must be used correctly to get good results. Typically, a thermal compound included in Omega is used to ensure good contact with the object being measured. In the case of an air conditioner, the tape will hold it in place, making good contact and allowing the thermocouple to recover. An alternate use: As an engineer, I was never sure if a store-bought thermometer could tell if I had a fever. Since there is no way to calibrate or certify the calibration with a percentage measurement error, I consider store-bought thermometers useless. An error of +/- 5% on a store bought thermometer means your actual temperature will be between 95 and 105 F when reading 100 F. They can be perfectly healthy or very ill. What is that? In contrast, thermocouples typically have calibration errors, are easily calibrated in the field, and have extremely small errors compared to thermometers. So next time I suspect a fever I'll be pressing this against my forehead for accuracy.