Originally Posted by Canibul
Can anyone with these sensors in their boat recommend them, or some better technology to a moving float arm and exposed potentiometer? I need two sensors, with a tank depth
of 22". I think plastic would be a better choice for an in-tank sensor housing than adding another grade of stainless, for starters.
We have WEMA sensors and gauges. The newer sensors are stainless. We had the previous plastic versions but they had crapped out (so to speak) even before we bought the boat, and we replaced with their newer stainless versions. Our first replacement was in 2006 or 2007, holding tank
, and the sensor has been working "fine" since them. "Quotes" because just now that sensor is starting to stick a bit, from time to time; a solid "thwack!" on the tank itself usually frees the float. (I may need to actually take the thing out and really clean it, perhaps not unexpected, considering the nature of the tank.) We didn't bother to replace the freshwater sensor until approx. 2012-ish, because we have an easy visual on the tanks
themselves. In any case, that new sensor works fine, too.
Length will affect how soon the sensors start reading.
The WEMA gauges (displays) are not calibrate-able (?) so what they read (based on conversions from Ohms, resistance as the float moves) is what they read. Accurate, or not. (So it helps to know -- from visual comparison -- where the gauge needle will be at empty, half-full, full, etc.)
The CruzPro digital tank gauges seem to be a better alternative, these days... and they are said to work with all common sensors. I just replaced our engine water
(coolant) temperature with CruzPro digital gauges, and the swap was seamless... so I'd expect that to be the case with tank gauges, too.
(No connection with CruzPro.)