I was wondering if anyone else had come accross this. Seems like a good deal...add a $50 sensor and you're set.

JAW is the lowest priced wideband oxygen sensor reader ever.
Product Features:

http://www.14point7.com/JAW/JAW.htm

$45 DIY Kit: Without Display
$70 DIY Kit: With Display
$60 Assembled: Without Display
$90 Assembled: With Display
Uses the inexpensive Bosch LSU Wideband Sensor.
Accuracy to 0.01 Lambda.
2 programmable outputs
Free Air Calibration
Real-time datalogging
User selectable refresh rate of 8-255 [hz] for digital display
Reads from 0.69 [Lambda] to 2.33 [Lambda]
Reads from 10.18 [AFR] - 34.28 [AFR]

 

Interesting.

 

I don't know what Bosch wideband sensor that uses, but I'm pretty sure it's not the LSU4.2, it has to be one of the earlier LSU generations. The reason I say that is there is no Bosch CJ125 interface chip for the LSU4.2. That wideband unit will probably work fine, but they usually have to be calibrated somehow for decent accuracy. The CJ125 takes care of that for the LSU4.2 sensors. With the $50-70 price for the sensor they quoted, that's not a LSU4.2 I'm pretty sure.
Most of the units on the market, Innovate, Zeitronic, etc., use the 4.2.

 

It uses free air calibration.

 

those work great with megasquirt

 

It's the older generation Bosch then..