Pro Plug Products has combined all of the great features of the RV7 Pro Plug with the SAE j560b plug, as used in the commercial trucking industry, to create the Pro Plug CT7. Additionally a window has been added in the terminal cover so that the LEDs can be viewed at any time for inspection. Projected availability is Q3 of 2010, contact us for more infomation using the phone and/or email info on the PURCHASE page.