While it's difficult to improve an automatic leveling control that already does what it's supposed to do - keep a submerged submarine level while under way - we've done it. Measuring only .75" X 1.1" X 0.3", APC-4 is the smallest and yet the most capable, user friendly, automatic leveling control available. Based on 25 years of "hands on" research and development, APC-4 is arguably the best there is. Simple installation, intuitive adjustment which allows fine tuning to meet your own boat's needs, variable sensitivity (the most sensitivity is not the best sensitivity - this is where experience tells the tale), and it's able to "stand alone" (no signal input required) so you don't have to waste a channel unnecessarily. The incredibly small size allows installation in even the smallest boats, the tightest compartments.
Not just ON the leading edge of technology, WE DEFINE IT!
SubSafe II - State of the art failsafe which will control a servo and/or solenoid on loss of signal.
ST-15 - 15 amps of continuous current won't make this speed control even breathe hard. Measures 1.5" X 1.5" X .75"
The U.S. of A - Land of the Free BECAUSE of the Brave