EBSN 20 Amp Electric Switch f/Bilge PumpFeaturesOperation managed by microcontroller.Advanced digital filter to distinguish the presence of water.Extended power supply range.Remote indication of operation status by led or remote control panel (optional).Manual remote pump switch-on by button or remote control panel (optional).Signal for prolonged bilge pump switch on (if led or remote control panel is installed).Protection against excessive battery rundown.Switch-on/switch-off delay to avoid false switch-on/switch-off cycling of the pump caused by the roll of the boat.Functioning over a wide range of environmental temperatures.Resin-coated watertight casing.Easy installation.