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HAZ-DUST Model: SM-4000 Personal Silica Monitor

Personal Real Time Silica Monitor

SM-4000 Real-Time Personal Silica Monitor The SM-4000 air sampler is mounted in the OSHA defined breathing zone allowing for a more accurate representation of workers exposure. Having a Real-Time Optical Sensor placed in the breathing zone, reduces inner wall dust deposition, experienced by other Real-Time optical devices on the market. In addition, having a gravimetric filter cassette directly behind the optical sensor allows for maximum particle deposition on the filter and thus a more accurate representation of worker exposure. The SM-4000 offers Real-Time Concentration Readings and the DustComm Software allows for graphical analysis and comprehensive time history reporting.



  • Direct Reading
  • Optical & Filter Sampler
  • Sensor & Filter mounts in breathing zone
  • SKC’s GS-3 Cylone – conforms to ISO 7708 Standards
  • Optional Wireless Data Transmission


Belt mounted enclosure

Inline 37mm Filter Cassette

Sensing range: 1-20,000 ug/m3

PM size range: 0.1 to 10μm

Sampling flow rate: 2.75 LPM User adjustable

Sampling Inlet: SKC GS-3 Cyclone

Alarm output: 80 db

Digital output: RS-232-

Record Time: 1 s – 21 weeks

Display: Real-Time ug/m3

Operating temp: -10°C to -50°C

Battery: Rechargeable 8hr

Weight: 1.5 lbs

Dimensions: 5.4 x 3.3 x 2.7 in


  • Foundry Work
  • OSHA compliance
  • Stone Cutting
  • Quarry Work
  • Tunneling
  • Rock Drilling
  • Any occupation which cuts, chips, drills, grinds silica into respirable size fractions


Haz_Dust Model SM 4000