the lambda probe is unbranded.

An Arduino board coupled to this shield allows to measure the percentage of oxygen contained in the smoke or air, calculate the lambda and the AFR(air fuel ratio) of combustion.  

The software and the necessary information is available on a website.
The data can be sent to a computer via cable, or to a smartphone via
integrated bluetooth module, to visualise the values:

 

Upgrades with respect the previous version:

  1. Integrated bluetooth module
  2. Stackable, works without external cables, with arduino Uno and arduino Mega.
  3. Noise elimination in the measurement, if the arduino is powered from the Lambda Shield.
  4.  Safe and efficient power supply to the arduino from 12V transformer input or car battery

Includes:

 
Does not include:

For more information google.