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Dräger Catalytic Ex-Sensors Sensors for Portable Gas Detectors

Dräger Catalytic Ex-Sensors

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Dräger Catalytic Ex-Sensors

The Draeger Sensor Catalytic Ex-Sensors measure multiple gases at the same time--combustible gases and vapors in the air.

Resistance to poisoning

DrägerSensors are robust and easy to handle, and with the DrägerSensor CatEx PR Technology, we have succeeded in developing particularly long-term stable catalytic Ex sensors. Hydrogen sulfide and silicones are known catalytic poisons which may be present themselves in the environment where explosive gases exist. Thanks to a new pellistor composition, the sensors are highly resistant to ‘poisoning’ from these substances.

Sensitivity to vapors

Unknown gas hazards and higher hydrocarbons pose a particular challenge to the display sensitivity of catalytic sensors. The new CatEx 125 PR and Smart CatEx (PR) sensors have such a sensitivity. The detection of all hydrocarbons (from methane to nonane) has been confirmed with a measurement certificate for the device series Dräger X-am® 1/2/5000 and Dräger X-am® 7000.

Optimised for extreme conditions

​The design of the new sensor CatEx 125 Mining PR makes it particularly impact-resistant and thus optimised for the harsh conditions in the mining industry.

From LEL to 100 % by vol.

​Our catalytic sensors are suitable for measurements from the lower explosion limit (LEL) to 100 % by vol.


Catalytic Ex-Sensors Product Information, en-us
Catalytic Ex-Sensors Product Information, en-us


DrägerSensor & Portable Instruments Handbook (6th Edition), en
DrägerSensor & Portable Instruments Handbook (6th Edition), en


Sensors and substances

Dräger-Sensors for portable gas detectors can be used to measure a large number of hazardous substances. Check the different sensors by searching for a substance. Get in contact with our experts to get more information.

Search for substance

Please enter a substance

Product configurations

Utilise for 42 Substances

6 matching Sensor(s)

Get in touch with Dräger

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Draeger, Inc. – Safety

7256​ ​S.​ ​Sam​ ​Houston​ ​W​ ​Pkwy.,​ ​Suite​ ​100
Houston,​ ​TX​ ​77085