Quest EVM-3, Dust Monitor, 3Sensor, Dust, Temp, Humidity

EVM-3 Real-Time Direct Reading Particulate Monitor (datalogging) monitors for Particulates, Temperature, and Humidity (with air probe input connector). Kit includes base model with Particulate Monitor, two 37mm filter cassettes (for pump protection), 12V DC universal power supply, USB cable, silicone dielectric grease, 10-pack pump protection filters, dust zero calibration assembly, and storage case. Purchase Air Probe-10 Air Velocity Probe separately.

EVM-3 Real-time Direct-reading Particulate Monitor
Measures and logs:

Particulate mass concentration (PM2.5, PM4, PM10, or TSP*)
Temperature
Relative humidity
Optional sensor accessories: AirProbe-10 velocity probe, CO or select from 8 other toxic gas sensors, CO2, PID

Contact us for Additional accessories

Application

Worksite monitoring
Industrial hygiene surveys
Military site evaluation
Aircraft and train environment sampling
Construction/mining site monitoring
Engineering studies
Industrial fenceline monitoring
Remediation sampling
IAQ walk-through and stationary studies
Air quality assessment
VOC screening and monitoring
Regulatory compliance

Performance Profile

Method	Base Units	Display Res.	Display Range	Accuracy/Repeatability
Particulates
Light-scattering Photometer	mg/m³	0.001	0.000-199.9	± 15% (rel ARD†)
Particulates Size Range	µm	N/A	0.1-10	**
Carbon Dioxide
NDIR	ppm	1	0-20,000	± 2% of signal, ± 50 ppm between 0-2500
Toxic Gas (Electrochemical Sensors)
Carbon Monoxide	ppm	1	0-1000	± 5%/2% of signal
Chlorine	ppm	0.1	0.0-20	± 5%/2% of signal
Ethylene Oxide	ppm	0.1	0.0-20	± 5%/2% of signal
Hydrogen Cyanide	ppm	0.1	0.0-50	± 5%/2% of signal
Hydrogen Sulfide	ppm	1	0-500	± 5%/2% of signal
Nitric Oxide	ppm	0.1	0.0-100	± 5%/2% of signal
Nitrogen Dioxide	ppm	0.1	0.0-50	± 5%/2% of signal
Oxygen	%	0.1	0.0-30	± 5%/2% of signal
Sulfur Dioxide	ppm	0.1	0.0-50	± 5%/2% of signal
Temperature
Junction Diode	deg C	0.1	-10.0- 60.0	± 1.1 deg C
Junction Diode	deg F	0.1	14.0- 140.0	± 2 deg F
Relative Humidity
Capacitive	% humidity	0.1	0.0-100	± 5% RH of signal between 10 - 90%
Air Velocity
Omni-directional Heated Thermistor Windprobe	m/sec	0.1	0.0-20	± 0.12 m/s + 4.5% of signal
Omni-directional Heated Thermistor Windprobe	ft/min	1	0-3940	± 23.6 ft/min + 4.5% of signal

General
Size Fractions	PM2.5, PM4, PM10, or TSP**
Sample Pump Flow Rate	1.7 L/min
Power/Run Time	Rechargeable Li-Ion battery pack provides minimum of 8 hrs of continuous operation
Weight	2.9 lb (1.3 kg)
Standards	CE marked and RoHS compliant

†	Arizona Road Dust (ARD)
**	The photometer can detect particles up to 100 µm; however, accuracy is reduced for sizes greater than 10 µm.

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