DEX-41.K Ex

Product model withdrawn from sale

Device group: Threshold gas detectors
Device type: DEX/F
Device model: DEX-41.K

Detectors DEX®/F are used for continuous monitoring of premises for combustible and toxic gases (and oxygen). The detectors come with two preset concentration thresholds for alarm purposes.

Detector DEX®/F can be used in all places specified as II 2 G (according Directive 94/9/EC - ATEX). All detectors are made according to Polish and European Standards PN-EN 60079-0:2006(U) and PN-EN 60079-1:2008.


  • detachable and interchangeable sensor unit guarantees easy maintenance and low cost operation;
  • easy change of detection gas or calibration of detector;
  • built in temperature compensation;
  • semiconductor or catalytic or infra-red sensor for combustible gases or electrochemical sensor for toxic gases or oxygen;
  • high temperature (up to +80°C) version available;
  • all detectors are calibrated in our own GAZEX Calibration Laboratory operating in accordance with PN-EN ISO/IEC 17025 (PCA accreditation No AP150).

Typical system configuration

Technical parameters

Gas sensor module Sensor Substance/property Standard alarm thresholds or measuring range
MS-41.K/N Catalytic Ammonia (NH3)

Two-state outputs (threshold)
Possibility of working in potentially explosive atmospheres
ATEX certificate
Supply voltage
System powered
105 x 103 x 54 mm


Series Technical data Device information sheet Instruction manual Declaration of conformity
U1 Download file Download file

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Test kits for checking the correct functioning of detectors