The Pump Plus is a small air compressor and a completely automatic battery charger packaged together. Air compressor is designed to be mounted on vehicles with air brakes to maintain the air pressure in the air brake system while the vehicle is not in use. A pressure switch senses the system pressure and operates the compressor whenever the pressure drops below a predetermined level. Battery charger is completely automatic and is for vehicles with dual battery systems. The batteries are automatically charged and maintained fully charged while still being isolated from each other. This new and improved unit contains two independant chargers to sense and control the current to the batteries. Designed to mount directly on the vehicle. 12v Compressor has one year warranty; Battery Charger comes with three year warranty. Ship. wt. 20 lbs.

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