NEXPEAK OBD2 Scanner | $44 | Amazon | Promo code NEUSZW29
Graphic: Shep McAllister
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The computers in your car constantly spit out useful data, and you can make sense of it with this OBD2 scanner from NEXPEAK, which is $25 off today when you use promo code NEUSZW29.

At $44, itā€™s a bit more expensive than the basic scanners that only tell you error codes, but itā€™s not that much more expensive considering all the extra features included. The color screen helps you make sense of all the data, itā€™ll let you know if youā€™ll pass your emissions test, and it can even display a live graph of various measures of engine performance to help you diagnose issues.