Review on High-precision Digital 4 Channels K Type Thermocouple Thermometer with Metal & Bead Probes: Handheld, Backlit, High Temp Meter Tester - Multi Measurement Instrument Tool by Patrick Alexander

I noticed that the four sensors indicate very different ambient temperatures. I placed four probes at a time in a glass of well-shaken ice water. Sensor 1 = 41.5F, Sensor 2 = 40.4F, Sensor 3 = 143.4F, Sensor 4 = 137.4F. I changed the battery with the same result. I changed the ports where the sensors were and again saw very different results. It's cheaply made; K connectors felt like they would break when plugged into the meter. I would *not* recommend it and I'm giving it back to Revain.