Gas detection, gas warning and gas concentration measuring device for working in the ppm, LEL, and vol. % ranges.

The EX-TEC PM4 is suitable for use for gas detection, gas warning, and gas concentration. It is also utilized for dynamic and static measurements. The unit functions through basic operator guidance, which uses selections from DVWG applications. The device provides visual alarms and temperature compensated sensors.

Additionally, the device is designed with a corrosion-proof structure and stainless steel body. It features three keys for simple operation and alarm thresholds for each gas. The equipment is integrated with a menu for separate device configuration and an adjustable test gas protection. Also, it is manufactured with an EC examination certificate, for the passive explosion protection. For active explosion protection, it has secured a certificate of BVS 09 ATEX G 002 X.


EX-TEC PM 4 Features

  • Modular instrument concept.
  • The basic device without pump (diffusion) or with built-in pump
  • Sensor combinations for diverse applications
  • Power supply by rechargeable or disposable batteries
  • Microprocessor controlled
  • The large illuminated LCD display
  • Self-test when switched-on
  • Easy handling
  • Visual and audible alarms
  • Adjustable alarms for each range
  • Temperature-compensated sensors
  • Easy to follow operator menu
  • Function menu for instrument configuration (PIN code protected)
  • Operator selectable flammable gas menu (option): methane, propane, butane, hexane, nonane, hydrogen, jet fuel
  • Adjustable test gas concentrations



  • Passive protection:
  • EC-type-examination certificate in accordance with ATEX 100a, guideline 94/9/EG
  • Certificate No.: TÜV 01 ATEX 1657
  • Identification: EX-Symbol II 2 G EEx de ib IIB T4
  • Active protection:
  • Function safety test in mode "warning" at "Deutsche Montan Technologie GmbH"
  • Test report: PFG-Nr.:413 007 02P