Junk!!!!!
Searching the internet for gauges and found this neat new product...
http://www.plxdevices.com. Not as nice as the scan gauge or Aeroforce but for $89.00 it's nice if all you are looking for is Speed, RPMs, fuel mileage, temp, and a code reader. Only downfall is it's size.
PLEASE do NOT buy this thing. If you want wideband O2 and and other datalogging, buy a LM1 (actually now its LM-2) w/ the rpm converter or aux box from Innovate Motorsports. When I was researching wideband O2 monitors, I looked at the PLX. On the surface, it seems like a cool device, with some "cool" extras that Innovate didn't have. Then I called their tech people. to ask some technical questions. Makes sense, right? I knew more about the technology than the tech guy. and I talked to more than one.
I continued my research, and called Innovate. Their people KNOW what their talking about. I won't pretend to understand the engineering stuff that goes into wideband O2, because I don't at least not much beyond the basics. However, as Innovate explained, and I confirmed with avrious corroborating reviews and technical discussions I found in several days of google searches, the Innovate stuff is real, accurate TOOLS. The PLX, and most other wideband gauges out there, are just toys for "tooonurz".
Why? Well, as I understand it, Innovate is the only one who requires that you field calibrate the sensor/controller to both the individual sensor as well as free air. If I remember right, they're also the only ones who can. Also Innovate's philosophy is that they would rather the device report an error condition (such as sensor overheat,timing errors,etc..) and not give you a number, whereas the other devices (PLX,etc..) aren't even capable of recognizing these errors and will just go on happily reporting erroneous A/F ratios.
Seriously, before you purchase a wideband O2/datalogger setup, do the research. Talk to the tech people, then call Innovate. Look at the forums on Innovate Motorsports website. There is real support there.
No, I don't work for them or anything. I just hate to see people buy junk.