Mitco N27-16 Smoke Check Combustion Smoke Tester for Checking the Smoke Content of Flue Gases
Features
High impact barrel
Solid brass shaft
All hardware stainless steel
Fits standard Bacharach case
Fits all types of smoke paper
Flue gas is drawn through the tester, staining the paper provided
This is compared to the smoke scale, also provided, enabling the serviceman to set the burner at maximum efficiency without guesswork