Dust Monitor

Nephelometer Real-time Dust Monitor


Accurate Dust Concentration
Proprietary algorithm provides accurate dust concentration. The feature prevents internal contamination and improves accuracy.

Temperature compensated, durable housing and minimal moving parts ensure reliability.

Highly Portable
All-in-one handheld instrument with long-life batteries that fully charge in less than 3 hours, an internal log-life pump, and one-hand operation.

Facility Monitoring
Easy to use software allows programming unique environmental profiles and recording sample data.

Common Applications
• Industrial/Occupational Hygiene Area Surveys
• Particulate Matter Studies
• Immediate spot measurement
• Aerosol Research Studies

About the Nephelometer Aerosol Monitor

The Sensidyne Nephelometer is an advanced real-time dust monitor (aerosol monitor) accurately measuring dust concentrations using proven light scatter technology. This portable instrument accurately measures and records dust from 1-10,000 μg/m3 with resolution to 1 μg/m3. Sample modes are selectable between 60 second sample, 15 minute STEL, or continuous sampling.

The Nephelometer has an internal pump drawing samples into the iso-kinetic sampling inlet where they meet sheath air that guides samples past the particle sensor. The sensor is a photo detector that measures laser light scattered by particulates in the sample stream. The instrument multiplies each measurement by a K-factor and displays the real-time reading on the display of the instrument. After each sample, the K-factor and Environmental Factor Name and STEL, maximum, minimum, and average readings record to the internal data log. When connected to a computer the instrument uploads up to 4,000 data-log records in spreadsheet format.

In addition to high sensitivity and ease-of-use the Sensidyne Nephelometer offers a low cost of ownership, automatic power save, long-life, data-logging, facility monitoring features, and user-replaceable filters. The Sensidyne Nephelometer is a competitive, well priced alternative to high priced aerosol monitors.



Measurement Method: Light scatter
Particle Size Screening:
                                       Standard Model:  TSP
                                       Deluxe Model:  TSP, PM 2.5, or PM 10 Selective
Sample Method: Pump sample draw
Range: 0.1 – 10,000 μg/m3
Sample Options: 1 minute, Continuous, or 15 min STEL
Resolution: 1 μg/m3
Data logging: 4000 records of STEL, Max, Min and average reading and k-factor

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