Re: Temperature Guage at 70 when warm!
I calibrate gauges for a living, electric gauges with electric senders are rarely reliable and are not used in critical applications. If you want a true indication of your water temp, you need a capillary gauge or a direct mount unit. Even then gauges require calibration against a standard to confirm accuracy. Knowing alfa electrics I would use the gauges for indication only, unless they are calibrated frequently. On another note we could expect an error of +- 10deg on this type of gauge as standard