Cheap,simple, works well on my Civic,nothing fancy
NO battery required. No extra plug adapters to figit with or lose, just a simple, easy to use plug and play code reader for your vehicle. Price was great and I need not look up the code description in a book or on a CD-ROM, instead I instantly know why the darn light is on again and after repair, rest th light to pass inspection. No more black sticky tape to cover the CEL Woo-hoo!What I want to know is why vehicle manufacturers do not build this simple tool into the vehicle itself, cost would be $20 or so, easily absorbed by the huge price tag paid when new. A solid light that says check engine? "Come on...thats so 80's man...This is the new millinium!"