Double check that the vehicle you want to use it on will work with the elm327. It does not do all OBDII Protocols last time I checked.
I bought a Autel MS802 All systems a few months back. Gave $210 for it new off ebay and so far am very impressed by the modules that it will read and the live data it will show. It's a little slow and clunky operating but doesn't carry a huge price tag so it works great for me.
Look at this on eBay [Only registered and activated users can see links. Click Here To Register...]
Sent from my SM-N910R4 using Tapatalk