Ambient Air Monitors


14000 Ambient Air Monitor

Condensation Particle Counter & Optical Particle Counter

The Particles Plus 14000 is the first real-time dual mode ambient monitor to feature both a condensation particle counter and an optical particle counter in an integrated unit. The 14000 condensation particle counter is designed to detect and count aerosol particles by first enlarging the particulates using a supersaturated vapor. These robust monitors provide reliable, accurate measurement of airborne particles across a very wide size range (from fines to ultrafines) allowing for the detection of environmental and public health concerns involving airborne particulates.

Real-Time Data

The optical particle counter (OPC) bins fine particulates in up to 30 particle size channels (from 0.3 μm to 25 μm) which are stored in on-board memory at a user-defined data sampling rate (1 second to 99 hours per sample). The condensation particle counter (CPC) measures ultrafine particulates as small as 5 nm (0.005 μm) and provides a total particle count above this threshold, this data is also stored in each of the above samples to provide a more complete view of air quality.


Particles Plus systems are configured to allow users to push real-time data to the cloud where sensor outputs can be visualized by authorized stakeholders. 

Fully Integrated Environmental Sensor System

Integration of additional sensors for measurement of environmental and meteorological parameters including relative humidity, temperature, barometric pressure.

Airborne Pollution and Environmental Research
Perimeter or Fence-line Monitoring for Construction, Remediation or Hazardous Waste Sites
Mine and Quarry Fence-line Monitoring for dust control operations
City Wide or Community Air Pollution Monitoring
Roadside Emissions Monitoring
Medical Facilities Property Monitoring
Power Line Wild-Fire Monitoring
Environmental Disasters
Monitor for 24 hours a day, 7 days a week, 365 days a year
User-selectable PM sizes from 0.3 to 25 µm (from the OPC)
Total particulate counts above the ultrafine threshold (0.005 μm, from the CPC)
Closed-loop humidity control for the OPC airstream
Closed-loop condensation control within the enclosure
CPC Aerosol Concentration Range of 0 to 100,000 particles per cubic centimeter
ULTRAGUARD® Fiberglass reinforced polyester NEMA 4 rated outdoor tamper-proof
enclosure with internal thermal control
Optional pole or tripod mount options
Monitor for 24 hours a day, 7 days a week, 365 days a year
Optical Particle CounterCondensation Particle Counter
Measured ParameterFine particle counts, concentration and massUltrafine particle concentration
Operating PrincipleOptical light scatteringOptical light scattering after water vapor growth
Condensation ApproachNoneNear-adiabatic expansion with single particle counting
Concentration Range0.01 to 20,000 μg/m3 (50,000,000 particles/ft3)0 to 100,000 particles/cm3
Particle Size Range0.3 to 25 µm0.005 to 3.0 µm
Size ChannelsFactory calibrated at 0.3, 0.5, 1.0, 2.5, 5.0, 10.0 µm variable binning0.005 μm threshold (one size bin)
Efficiency50% @ 0.3 μm; 100% for particles >0.45 μm per JIS±10% below 30,000/cm3, ±20% at higher concentrations
Sample RateMinimum 1 second with no hold time, maximum 99 hours6s cycle time
Number of ChannelsUp to 30 channelsTotal
Liquid RequirementNoneDistilled water
Flow Rate1.2 LPMVariable
Operating Conditions-4º to 122ºF (-20º to 50ºC) / 20% to 95% non-condensing45º to 100ºF (5 to 38°C)
Communication ModesEthernet, USB. (Optional) Wireless 802.11 b/g, RS485, RS232 or LoRaWAN
Environmental SensorTemperature -4º to 122ºF (-20º to 50ºC) ±1ºF (0.5ºC) Relative Humidity 0 -100% ± 2%RH
Instrument CalibrationParticle sensor recommended once per year
External SurfaceULTRAGUARD® Fiberglass reinforced polyester - compression molded SMC box and Cover
Dimensions (L x W x H)5.5 x 8.4 x 21 inch (13.9 x 21.3 x 53.3 cm) includes barb fittings
Weight6.7 lbs. (3.0 kg)
AccessoriesQuick start guide, operating manual on USB flash drive, mounting feet
Optional AccessoriesPrinted manual, data cable, pole mounting hardware kit
Data StorageInternal 65,000 sample records (rotating buffer) including particle count data and environmental data
Power110 to 240 VAC 50/60 Hz universal in-line power supply
Warranty2 year limited warranty. Extended warranties available

new EM 11000 Graphics scaled