1Pcs INA333 Low Power Precision Instrumentation Amplifier Three op amp's Multi Module

No documentation comes with this - none at all. Had to create my own documentation to hook this up properly - see attached. Probably would have worked a lot better if the assembler would have cleaned off all the loose solder-balls. In the end, it works. Too bad they make such a simple to use item difficult due to lack of documentation and sloppy workmanship.

The output from the first device delivered tracked the 0-10mV differential input from an oxygen sensor but wouldn't give an output gain of more than 1.0 at any position of the potentiometer. This replacement unit gave an output off-scale. The fault was tracked to a open-circuit resistor. Both didn't work and so were useless to me. Looks like these boards are poorly made with not much QC.