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Ok, now this thing doesn't look like much, (In my opinion) until I saw that this thing can read your auto's onboard computer and give you a diagnotic of what it really means when your dreaded "Check Engine" light comes on.

We've all wondered that right? The best thing is, this thing can actually let you reset that light without going to the garage and spending a couple hundred dollars.

I think that alone is worth the $129.99 price. It plugs into your diagnostic OBD-II connector, which is found under the dash on 1996 and newer cars and light trucks. Some other details:

• Reads engine trouble codes and can reset the "check engine" light
  
• Trip computer that automatically tracks various elements of trip data
  
• Expanded digital gauges (fuel economy, battery voltage, coolant temp., etc.)
  
• No tools needed to install - plugs into the OBD-II diagnostic connector
  
• Simple Menu driven operation
  
• Backlight for night use
  
• Batteries not required
  
• Dimensions: 5.2" wide by 2.7" high by 2.1" deep
  

Available from ThinkGeek.

Check out Bruce's other blogs at http://www.bruceallenmedia.com