Sterling Power Products Pro Combi S Pure Sine Wave Form Inverter Charger, ideal for use with a battery bank for living off grid or on a boat. This item is used but in good working order. For sale (with battery bank, under separate listing) as new build is now connected to mains electricity. Also selling the illustrated Sterling Power Products ProCounter, part number S200A, includes 200A shunt, brand new and still in its box. Also 2 new and unused Sterling Power Products Pro Charge D Advanced Digital 4 Step Switch Mode Battery Charger / Power Packs AND 2 spare shunts. We can split or sell all together. Please ring for further details, and to arrange to inspect.