I Am looking to purchase a scanner in the $100 to $150 range. I have been looking at the Equus 3120 Innova Diagnostic Code Scanner or Equus 3130 Innova Diagnostic Code Scanner ..... 3120 can also read some OBD1 cars......3130 can do live data stream, no OBD1 capability... .... What can you recommend in this price range either from Equus or others ... ???? Thanks.