The only one worth buying is the
Neko AF700
I have it permanent mounted right of the back of my turbo!, not a problem, perfect readings, no BS excuses why it wont work etc etc, ~10,000km strong on the same sensor.
I made
www.rhdjapan.com stock this, check them out for pricing etc, it is not cheap, but then again its not a toy or a piece of shit like the rest you short listed.
ALL THE BEST japan tuning GIANTS use Neko Corp AF instruments.