ElmScan 5 is the original best-selling ELM327-based scan tool, and is the perfect entry-level scan tool for the budget-minded do-it-yourself mechanic. ElmScan 5 Compact lets you turn your computer into a sophisticated diagnostic system. The scan tool is a breeze to install and configure, and provides a lot more information about your vehicle, than a handheld scan tool. It is fully OBD-II compliant and works with any Windows PC with a USB port. ElmScan 5 Compact includes all necessary hardware and software to diagnose your vehicle's problems.

Customer review

This is an alright product:

Pros:
+Read & Reset Check Engine Light codes
+Can read many OBD parameters (just not with the included program)

Cons:
-Slow. The refresh rate is at best 1-3 updates per second when reading OBD2 values. This is way to slow to be of much use.
-Fuel mileage calculations with included software is woefully optimistic
-Included software can only read a few parameters. There are some free software alternatives, but most of the good stuff is quite expensive


Overall:
Decent for CEL reading/resetting. Although, a cheap handheld device does the same thing and is more portable.
Poor for monitoring values over OBD2. The refresh rate is too low to be of much diagnostic use.