MAG-1003PS – OTSA through-water unit only, the Magnacom® MAG-1003PS is a variation of our Magnacom MAG-1003D designed to be a portable surface unit. It features dual channels and comes standard with rechargeable NiMH batteries and a charger. Tabs Specifications Part # Description 900371-000 Portable Surface Station, 70 watts. Includes battery, charger, headset and transducer. Downloads Public Safety Catalog