Veethree Electronics lead the way in high performance marine technology. These range of reed switch senders are compatible with a variety of fuel and fluid types, including gasoline, diesel and hydraulic fluid. The reed switch sender unit provides fluid level information through a series of reed switches located inside the sealed level tube, a float with in-built magnets that trigger the reed relays to generate a resistance (with an OHM value) that increases and decreases. With the float being the only moving part of the sensor, these units a mechanically reliable and the range is suitable for use with both 12v and 24v gauges. Two output ranges of 0-180OHM and 240-33OHM are available in the range, in a number of different lengths to suit all fuel tank sizes.