The Exmonitor detector are used to measure and display toxic gases or oxygen. An electrochemical measuring cell is used for the measurement.

Especially in Ex-zones the devices of the Exmonitor series are used.

A type examination certificate for the electrical safety of the operating equipment is available.

Technical data

  • EC type examination according to RL 2014/34/EU,
  • Electrical safety of the equipment:
      II 2G
      Ex ia IIC T4 Gb
      BVS 03 ATEX E 384
  • detectable gases:
    CO, H2S, NO, NO2, SO2, Cl2, HCN, H2, HCl, NH3, O3, C2H40, O2 , u. s. w
  • Concentration display

  • Measuring range depending on gas
  • Measuring principle electrochemical measuring cell
  • linear measuring signal 4 – 20 mA
  • One-man calibration directly at the detector
  • 2-wire technology


Datasheet Exmonitor


GMC 8420

The GMC 8420 evaluation unit is a convenient evaluation system for wall mounting, which can be operated without further internal wiring.

It can manage up to 4 measuring points.

GMC 8022

The GMC 8022 controller is a gas measuring computer for up to 2 measuring points. It is designed for DIN rail mounting.

Measuring function:
BVS 02 ATEX G 007X

GMC 8022 E

The GMC 8022 E evaluation unit is a gas measuring computer for 19″ plug-in housings.

Measuring function:
BVS 02 ATEX G 007 X


Safety must be maintained


Maintenance &

Maintenance contracts