This is a New Old Stock Sentry model G240-3ncl 24vdc 40amp 230vac Charger. The unit has a few superficial scratches from being moved around but otherwise is excellent. If you have priced repairing your charger or replacing it you know how expensive these rare chargers are. This your chance to pick up a new charger for 50% of replacement cost. Email me at NCboat@aol.com for pictures and price if you are interested. Thanks. Grant