The Series PMI Particulate Matter Transmitter is designed to measure indoor air quality by detecting particulate matter in an office environment or HVAC duct. Using laser scattering technology, the Series PMI can measure particles as small as 0.3 µm, making it an essential component of any indoor air quality monitoring system. The optional relay combined with the settable alarm and control parameters allow the Series PMI to be a stand-alone controller. To learn more or order, please visit https://www.dwyer-inst.com/Product/AirQuality/IndoorAirQualityTransmitter/SeriesPMI

1. Series PMI
Particulate Matter Transmitter
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2. PMI Particulate Matter Transmitter
General Information
● What is it?
○ An instrument that measures particulate matter in the air
○ Identifies when the indoor air quality is below acceptable standards
○ Available in wall and duct mount models

3. PMI Particulate Matter Transmitter
Applications
● Educational institutions
● Hotels/restaurants
● Healthcare facilities
● Air purifiers
● Corporate offices

4. PMI Particulate Matter Transmitter
Key Benefits / Features
● Maintain healthy air supply
○ Long term stability and accuracy
● Single unit controller
○ Alarm/control modes with optional relay
● Minimal preventative maintenance
○ 10 years of service life in auto mode

5. PMI Particulate Matter Transmitter
Key Specifications
● Range:
○ PMI2.5W/PMI2.5D: 0-500 μg/m³, particle size 0.3-2.5 μm;
○ PMI10W/PMI10D: 0-600 μg/m³, particle size 0.3-10 μm
● Accuracy:
○ ±10 μg/m³ @ 0-100 μg/m³;
○ ±10% reading @ 100-600 μg/m³ @ 25°C / 50% RH
● Output:
○ Current: 4-20 mA;
○ Voltage: 0-10 VDC;
○ Relay: SPST 3A, 30 VDC / 250 VAC;
○ RS485/Modbus (RTU)
● Power Requirements: 16-28 VAC / 16-35 VDC

6. Additional Information
● You can find more information on this product by visiting our website at www.dwyer-inst.com
● For any technical questions you may have, we have several Applications Engineers available by
phone or email at:
○ (219) 879-8000 x6402
○ tech@dwyermail.com
● To request a quote or place an order, contact one of our Customer Service Representatives at:
○ (219) 879-8000 x6656
○ quotes@dwyermail.com
○ orders@dwyermail.com
PMI Particulate Matter Transmitter

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