Smoke opacity meter is designed to measure the car exhaust fumes of diesel cars and trucks.
Smoke Opacity Meter uses the partial stream technique which provides direct and continuous measurement of the smoke.
This technique measures the amount of light blocked by the sample on a scale of zero opacity to black with zero obscurity indicating no smoke in the sample cell and black Design criteria conform to French NF R 10-025, the German PTB EO 18-09, ISO 11614 draft and ECE R24, Annex 8/9 specifications.