Review on 🌡️ HOTSYSTEM Universal Water Temp Gauge: Electronic Blue Digital LED DC12V 2inches 52mm for Car Automotive (Fahrenheit) by Steve Hardy

The pressure gauge works as it should. At first he only read 104. He didn't move. Revane wanted to send me a new one. Then I read the reviews and saw the same release as the others. I thought it might be user error. So I used a new cable between the transmitter unit and the sensor. It then showed higher temperatures as the engine warmed up. I noticed that the sensor jumps a little higher, then lower. I just ran new wiring to service this unit while using previously existing wiring of a different gauge. That was the problem. Works great now. So in my case and probably some other bad reviews… it was due to user error.