24V Electrical Gauges - Water Level Section Loading... 1 Liquid Level Indicator for Detroit Diesel Engines Water, fuel, oil Price: $ 227.95 Qty: ^ Pictures In Stock Add to Cart 2 Pressure Alarm System Siren 6 to 28 VDC -SAH . Price: $ 102.25 Qty: ^ Pictures In Stock Add to Cart 24V Water Level Electrical water level indicator 24 volts for marine diesel engines.