Dust measuring analyser especially for wet stack gases and for blast furnace gas (BFG) monitoring.Please note that this product was discontinued on September 30th, 2018. Further details are given in the end of life notification. Repair at manufacturer site, remote and field service as well as spare parts are available until end of 2025.As successor product, DURAG offers the D-R 820F for extractive dust monitoring of wet flue gas. This device uses an optical sensor which allows a continuous measurement of dust concentration.