The FPV-POWER 12V Regulator is designed to be used with fishfinders needing a minimum of 11V to run. The reason is that at 11V, the battery will still have between 1/4 to 1/3 capacity left however the fishfinder will cut out as it hits its minimum operating voltage. The regulator is installed inline between the battery and fishfinder and will provide a constant 12V to the fishfinder right until the battery reaches its safety cutoff. Another use is to prevent your sounder from shutting off if you are running other high draw items such as a micropole.
Case: Waterproof hard case IP67 (waterproof only when lead is connected)