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The disposable PDM is a full-featured single gas detector that offers you unequaled value. The PDM single gas detector is your daily monitor for hazardous environments, because of its high reliability and user-friendliness. The PDM is the most cost-effective way to ensure safety.

  • Lightweighted & compact;
  • Stores up to 30 events;
  • Cost-effective;
  • User-friendly;


The disposable PDM is a full-featured single-gas detector that offers you unequaled value. The PDM single gas detector is your daily monitor for hazardous environments, because of its high reliability and user-friendliness. The PDM is the most cost-effective way to ensure safety. It operates for up to two years, just turn on the device and it runs continuously — no need for battery charging and replacements of sensors and batteries. That means great reliability and no downtime. The PDM is easy to wear, the backside of the device has a strong metal clip to secure the monitor to a shirt, belt, or helmet. The PDM devices are compatible with WatchGas Docking Station and WatchGas IR-Link. Both devices provide the function to download the data of the PDM single gas detector. The 30 most recent events can be stored on a data carrier. Our PDM can be calibrated or bump tested manually. The PDM Multi Dock will automatically calibrate four devices simultaneously (up to 12 devices per minute), which reduces downtime and gas consumption. We also have a PDM Mono Dock available

Product information

  • TWA and STEL
  • Lightweighted & Compact
  • Stores up to 30 events
  • Cost-effective
  • IP-67
  • Fast bump tests with Docking Station
  • Visual, Acoustic and Vibration alarm
  • User-friendly
Size 48mm (W) x 85mm (H) x 22mm (D)
Weight 93g (Toxic) / 104g (O2) (Battery clip included)
Sensor Technology Electrochemical Cell
Temperature -40°C ~+50°C (Toxic) / -35°C + 50°C (O2)
Alarm Type High Alarm, Low Alarm, TWA Alarm, STEL Alarm, Over Range Alarm, Battery Low Alarm, Bumptest and Calibration due notification
Alarm Signal Acoustic: 95 dB @ 30cm Visual: Red flashing LEDs Vibration: Vibration
Display LCD Display
Calibration 2-point calibration, zero and span
Event Log 30 most recent events
Battery Lithium Primary Battery SB-AA02(P) 3.6V, 1.2Ah
Measurement Diffusion
Housing Polycarbonate and rubber
Accuracy Deviation 2-3%
IP-rating IP67
Safety Certifications ATEX: II 1G Ex ia IICT4 Ga CSA: Class 1, Zone 0, Ex ia IIC, T4 Ga INMETRO: Ex ia IIC T4 Ga IECEX: Ex ia IIC T4 Ga CE: Conformite Europeenne
Sensor Life 24 months
Warranty 24 months
Model Detectable Gas Ranges Resolution Article Numbers
PDM O2 0-30 %vol 0.1 %vol 7181411
PDM CO 0-500 ppm 1 ppm 7181412
PDM H2S 0-100 ppm 0.1 ppm 7181413
PDM SO2 0-50 ppm 0.1 ppm 7181414
PDM NH3 0-100 ppm 1 ppm 7181415
PDM H2 0-1000 ppm 1 ppm 7181416
PDM NO2 0-20 ppm 0.1 ppm 7192011
Manufacturer Watchgas
Lifetime: 2 Years
Article Nr. O2: 7181411
Article Nr. CO: 7181412
Article Nr. H2S: 7181413
Article Nr. SO2: 7181414
Article Nr. NH3: 7181415
Article Nr. H2: 7181416

PDM - Datasheet

PDM - Manual

PDM Firmware V1.2.6 - Firmware downloads

PDM/PDM+ Multi Dock - Datasheet

PDM/PDM+ Multi Dock - Manual

PDM Multi Docking Manager Software 1.3.2 - Software downloads

IR Link 1.7.3 Software PDM/PDM+/QGM - Software downloads