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MODULAIR-PM

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PRODUCT SPECIFICATION SHEET

MODULAIR-PM

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Overview

MODULAIR-PM provides real-time estimates of particulate matter concentrations ( PM1, PM2.5, PM10) and particle size distribution using a novel combination of multiple light scattering-based particle sensors (patent pending). Each unit is internet-connected and paired with the QuantAQ Cloud to provide real-time data visualization and data access, team management tools, and fleet-wide sensor health diagnostics. MODULAIR-PM is designed to be used indoors and outdoors and is easily deployed as a standalone unit or as part of a distributed air quality sensor network.

A pdf version of this data sheet can be found here.

Features

✅ 2+ years on-board data storage

✅ Full access to raw particle sensor data

✅ No user intervention or regular maintenance required

✅ 1 minute time resolution (cloud); 5 second time resolution (on-board)

Air Quality Measurements

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PARAMETERRANGEACCURACY
PM1, PM2.5, PM10
0 to 2,000 µg/m3
See below.
Particle size distribution
0.35 to 40.0 µm (24 bins)
Not yet determined.
Temperature
-40 to 85 C
+/- 0.2 C
Relative Humidity
0 to 100%
+/- 2%

Measurement Error

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TIME INTERVALPM1PM2.5PM10
5min
R2 = 0.875 CV = 0.30 MAE = 2.9 µg/m3
N/A
N/A
1h
R2 = 0.899 CV = 0.29 MAE = 2.8 µg/m3
R2 = 0.936 CV = 0.14 MAE = 1.3 µg/m3
R2 = 0.810 CV = 0.32 MAE = 7.6 µg/m3
24h
R2 = 0.919 CV = 0.26 MAE = 2.4 µg/m3
R2 = 0.967 CV = 0.12 MAE = 1.2 µg/m3
R2 = 0.874 CV = 0.31 MAE = 7.6 µg/m3

*All statistics were determined via co-location experiments with research and/or regulatory-grade instruments such as the TSI SMPS or Teledyne T640 in environments across the United States. 5-min data was not available for PM2.5 or PM10 due to limitations of the reference instruments. The coefficient of determination (R2) describes how well the MODULAIR-PM predicts the desired outcome. The mean absolute error (MAE) describes the measure of error between the observed and predicted values. The coefficient of variation (CV) of the mean absolute error can be thought of as a 'percent error' as a function of the MAE. This table was last updated in April of 2021.

Power and Communication

🔋 Power

5V, 2A (supply); 250 mA avg. consumption

🗼 Communication

LTE (North America)

3G/2G (Global)

📈 Data

Web interface (quant-aq.com)

Programmatic access (QuantAQ API)

Local Storage (µSD card)

Operating Specs

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PARAMETERDETAILS
Weatherproof rating
IP68
Operating temperature
-20 to 60 C
Operating humidity
5 to 95%, non-condensing
Dimensions
6.59" x 6.59" x 5.11"
Weight
4 lbs (1.8 kg)