The T-H Marine Bilge Pump Float Switch must be mounted in a position where it shuts off before the bilge pump is at risk of sucking air into the impeller. Ensure the mounting location allows the switch to shut off with the bilge pumped out completely.Note: Never mount the float switch lower than or at the same level as the bilge pump. FeaturesActivates Pump AutomaticallyStainless Steel Hardware IncludedTinned WireSubmersible, 12V Bilge Pump Float Switch5 Amp at 12V DC