Product Description: 9.5si M.O.S.F.E.T. Diagnostic Control; Self-Recovery Winch; 9500 lb./4310 kg; 12V DC Motor; w/Roller Fairlead; 125 ft. Wire Rope; - Monitors Key Functions Of the Winch - Monitors Temperature Of Motor Signals - Reliable And Durable - 12.5 Pound Aluminum Die-Cast Body - Levels Of Control Never Before Possible - Monitors Over/Under Voltage