THIS IS A VEEDER-ROOT TLS-250 TANK LEVEL SENSING SYSTEM, GASBOY FUEL MANAGEMENT SYSTEM SERIES 1000, WITH A GASBOY CARDTROL BOX. SEE PICTURES A EXPENSIVE SYSTEM. THEY ALL WORK. A CITY TOOK THEM OUT AND PUT A WHOLE NEW SYSTEM IN. THIS COST A LOT OF MONEY NEW. THANKS FOR LOOKING.