Raymond, (Pasco, WA)
Check out the SeeLevel monitoring system produced by Garnet Technologies, www.rvgauge.com. Their tank sensors are incorporated into a single, flexible circuit board, fitted to the exterior of the tanks. One side of the flexible board contains the transmitter and the other side holds the segmented receivers. All this means is that the signal from the sensors is digitized and the readout on the monitor panel shows the percentage of how full each tank truly is – to within an accuracy of 2%. Quite an improvement over systems using levels indicated by each quarter or third segment of the tank.