Made for single tank monitoring. It displays the tank levels in quarters (E, 1/4, 1/2, 3/4, & F) with a series of LEDs. The one tank unit is pot(less) through the use of new Smart Chip technology. Only a button push at empty and full is required to accurately calibrate your tank. Monitors composite fresh water, waste water and fuel tanks. Description 1 tank LED mini kit

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