Gas detectors
Drager PSS 4000 breathing apparatus
1 June 2017
Drager Polytron 7000 stationary gas detector
8 June 2017
Drager Polytron SE Ex stationary gas detector
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The Dräger Polytron® SE Ex … DD sensing heads are gas detectors for the continuous monitoring of flammable gases and vapors in the ambient air. The measurement is based on the heat of reaction principle, where a chemical reaction takes place in a catalytic bead (so-called pellistor) inside the sensor.
