Inlet Video


DPM-4000 Real-Time Diesel Particulate Monitor








The product is designed for measuring diesel particulate matter for Industrial Hygiene and Environmental air investigations. The DPM-4000 is individually worn and offers immediate determination and data storage of air borne diesel particulate concentrations in micrograms per cubic meter. This is the only commercially available personal direct reading aerosol monitor specifically designed and calibrated for measuring occupational exposures of diesel particulate matter in the work place.

  • Diesel Engine Surveys
  • Combustion Efficiency
  • Mining
  • Transportation (i.e. bus depots, trucking, freight)
  • Survey tool for MSHA and NIOSH Compliance Programs
  • Direct Readings in ug/m³
  • Comfortable light weight
  • Miniaturized Sensor Design
  • Adjustable Alarm Signal
  • RFI/EMI Protection

Weatherproof Enclosure

Inline 37 mm disposable

PM size range:

Sesoning Range: 1-20,000µg/m³

Sampling flow rate: 1.0-3.3 LPM

Alarm output: 90 db at 3 ft

Analog Output: 0-2 Vdc

Digital Output: RS-232

Record Time: 1 s. to 21 wks.

Operating temp: 0 to 50°C

Battery: Rechargeable 24hr

Weight: 2 lbs

Dimensions: 5.5 x 3.25 x 2.75