Opel Tech2 USB version supports the following models: 
• 1997  - Corsa ?B, Tigra, Astra-F, Vectra-B, Calibra, Omega-B, Frontera, Monterey,    
             Sintra
• 1998 -  Corsa ?B, Tigra, Astra-F, Astra-G, Vectra-B, Omega-B, Frontera, 
             Monterey,  Sintra
• 1999 -  Corsa ?B, Tigra, Astra-F, Astra-G, Zafira, Vectra-B, Omega-B, Frontera-B, 
             Sintra
• 2000 -  Agila, Corsa ?B, Tigra, Astra-F, Astra-G, Zafira, Vectra-B, Omega-B, 
             Frontera-B
• 2001 -  Agila, Corsa ?B, Corsa-C, Astra-F, Astra-G, Zafira, Speedster/VX220, 
             Vectra-B, Omega-B
• 2002 - Agila, Corsa ?B, Corsa-C, Astra-F, Astra-G, Zafira, Speedster/VX220, 
             Vectra-C/Signum, Omega-B
• 2003 - Agila, Corsa ?B, Corsa-C, Meriva, Astra-G, Zafira, Speedster/VX220, 
             Vectra-C/Signum, Omega-B
• 2004 - Agila, Corsa-C, Meriva, Astra-G, Zafira, Speedster/VX220, 
             Vectra-C/Signum, Vivaro, Movano

With the latest OP-COM version, you'll be able to diagnose the following systems:
• Engine Control (gasoline and diesel)
• Automatic Transmission
• Electronic power steering
• ABS
• ESP
• Immobiliser
• Airbag
• Instrument Cluster
• Electronic climate control
• Level control
• Electronic headlight levelling
• Engine cooling
• Central door locking
• other electronic control modules