12/24V, 20 AMP
Highly reliable and envrionmentally friendly, with no moving parts and no mercury
Two detectors activate the pump when water level reaches 2" and turn it off at 1/2"
Hermetically sealed, watertight housing; not affected by oil fuel or debris
Attaches directly to all Johnson Pumps and can be used as a stand alone switch for any other 12 or 24VDC bilge pump up to 20AMP draw