Check the listing for details. OPW Petro Vend K800 Fuel Site Controller Terminal Modem Printer Ports Module. Condition: For parts or not working, Made in United States. Listed at 69.99 USD. Brand: OPW Fuel Management Systems Model: K800 Fuel Site Controller in gray metal enclosure with Petro Vend front panel. Condition: Used controller shows scuffs, scratches, and finish wear on the metal housing from prior use. Front panel has light surface marks; underside labels show wear and residue. Includes K800 controller unit, plug-in AC power adapter, and interface cables only; no manuals, mounting hardware, or original packaging. Unit has not been tested with a live system recently. Rear panel connections: MODEM, TERMINAL, PRINTER, PETRO-NET mini-DIN style ports, 12VAC power input terminal. Front panel features: POWER, RESET, STATUS, TEST, and BATTERY indicators and buttons with Petro Vend logo.