Amazon.com has standalone ones with buttons and display for under $ 20. If you have a smart phone and are willing to load an app on the phone and use it for the buttons and display then Amazon.com has those for under $ 12.
Randy - Manhattan, Kansas
2015 Vista 27N
2016 Honda HR-V
I got the Autel MaxiScan OBD-II Diagnostic Code Scanner at Amazon a couple of years ago for around $18 dollars now it is just under $20.00 https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 I've used it several times and it worked for me. Not a lot of detail on the small screen but I was able to look up the code online and find out all about what caused it before I reset it.
__________________ Bob and Cathy
2015 Itasca Sunova 33c towing a 2008 Jeep Wrangler Sahara
Member FMCA F421963, GS Life, SKP#127220, WIT, PA,
I downloaded (purchased) an app for the IPAD and then got a wireless bluetooth adapter for the ODB. We can drive down the road and monitor the engine condition and how we are doing with things like the throttle. It helped us smooth our driving techniques. YMMV of course.
Jerald and Claire Pendleton
And Ginger 1/4 Chi, 1/4 Rat Terrier, 1/2 Pure Mutt / 2013 Smart Car Toad
2015 Itasca Suncruiser 37F / citizensoftheroad.blogspot.com
The BlueTooth OBDII adapters are great since they provide much more functionality that the ScanGauge. I have both and its great to be able to load the bluetooth readers software on your Android Tablet and get a much better display and data logging. The adapters can be had for less than $20 on Amazon with standard free shipping to boot while the ScanGauge can set you back over $100. The Bluetooth has the added plus that you are not locked into just the supplied software and can upgrade it to more current versions or more functional software much of which is free.