Tech 2 usb cable for Opel is an alternative for other service device VAG 1552. Both testers has the same functions for complete diagnose. Easy interface designed to make your PC professional car diagnostic machine. It has minimum requirements - all you need it Pentium PC with COM port. All electronic parts are well fitted into OBD II connector what makes this device really resistant and proof to work in each car service. Protocol: ISO 9141-2 / SAE J1962. Usage: Diagnose of all electronic systems in all cars which has diagnostic plug. It has three functions switch of pins - switch data line to pins 3, 7, 12 depend on which part is choose to be diagnosed. Supported models: for Opel 1997 to 2004 Agila (2000-2004) Astra-F (1997-2002) Astra-G (1998-2004) Arena (1998-2000) Campo (2001) Corsa-B (1997-2003) Corsa-C (2001-2004) Sped-ster/VX220 Tigra (1997-1999) Ome-ga-B (1997-2003) Vec-tra-B (1997-2001) Vec-tra-C(2002-2004) Meriva Movano (1999-2004) Viviaro (2001-2004) Za-fira (1999-2004) Available diagnose options: 1. Engine 2. Chassis ABS 3. Body, Clime, Immo, Airbag, other Note: If you are not professional for technology, please don't buy this product Installation guide not included, we strongly recommend you seek professional installation. Please check as much as possible to make sure the item is what you need. Tips:The product may be updated constantly, Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use. Colour:As Shown Material:Plastic Package Contents: 1 x USB TECH2 Interface Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.