Attwood Bilge Switch S3 Series - 12V Autopilots offering the highest power-to-space ratio

offering the highest power-to-space ratio on the market

High-Definition Digital Output

E-port makes it easy to access an extension cord so you can bring electrical power inside your tent

Boatside Connection - 30 AMP/125 V SmartPlug

Mix and Match 600W transducers include the B117

Attwood Bilge Switch S3 Series - 12V Autopilots offering the highest power-to-space ratioAutomatic Bilge Switch S3 Series Part #: 4801 7 Incorporates a proprietary Electronic Sensing technology to detect bilge water levels and trigger pump activation and has been engineered to operate in any bilge water mixture consistently without failure. Your pump won't be exposed to continuous cycling as the S3 switch can easily distinguish splashing bilge water, chemicals, sludge build up or foam and comes equipped with fully sealed electronics that