This is the Boat Saver Bilge Pump Designed For 6-12 Volt Operation. When installed into the bottom of your radio box or hull, this device will detect the presence of water in the boat"s interior. This is used to protect your radio equipment from shorting due to water damage. With water detected, a bright warning light turns ON and the included bilge pump engages. FEATURES: Easy to Follow Instalation Instructions Hard Plastic Base Insulates Botom of Motor Detection Light Warns of the Presence of Water in Your Model INCLUDES: One Boat Saver With Bilge Pump Unit One Ram Product List One Instruction Sheet One Water Tube SPECS: Length: 2.5" x Width: 1.75" x Height: 1.5" Tube: 1/4" Outer Diameter 1/8" Inner Diameter 6-1/2" Long REQUIRES: One 6-12V Battery (9V Clip is Included) Screws or Glue to Mount To Hull Or Box 1/4" Drill Double Sided Servo Tape krm 6/22/99 ir/jl