Ambient air quality monitoring is the systematic, long-term assessment of pollutant levels by measuring the concentration and types of certain pollutants in the surrounding, outdoor air. Some of these pollutants (commonly called ‘Criteria Pollutants’) are considered hazardous to human health and their levels are regulated by government agencies around the world, including the US EPA. 

​Teledyne API provides a complete line of ambient air quality monitoring instruments, including those for both gas and particulate pollution, as well as calibration instruments that help ensure consistently high data quality to government agencies, consultants, industrial facilities, and institut​​​​​ions around the world.

  Sulfur Compounds Instruments
Gas Model Ranges 
(Min/Max)
SO2
Sulfur Dioxide
T100U 0-5 ppb / 0-20,000 ppb
T100 0-50 ppb / 0-20 ppm
H2S, SO2
Hydrogen Sulfide, Sulfur Dioxide
T101 0-50 ppb / 0-5 ppm
TRS, SO2
Total Reduced Sulfur, Sulfur Dioxide
T102 0-50 ppb / 0-10 ppm
TS
Total Sulfur
T108U
0-5 ppb / 0-10 ppm
T108 0-50 ppb / 0-10 ppm
     
  Nitrogen Compounds Instruments
Gas Model Ranges 
(Min/Max)
Direct, True NO2
Direct, True Nitrogen Dioxide
T500U
0-5 ppb / 0-1,000 ppb
NO, NO2, NOx, O3 
Nitrogen Oxide, Nitrogen Dioxide, Ozone
T204 0-50 ppb / 0-20 ppm NO, NO2, NOx 0-50 ppb / 0-1 ppm O3
NH3NO, NO2, NOX
Ammonia, Nitrogen Oxide, Nitrogen Dioxide
T201
0-50 ppb / 0-2,000 ppb
NO, NO2, NOX
Nitrogen Oxide, Nitrogen Dioxide

T200U 0-5 ppb / 0-2,000 ppb
T200 0-50 ppb / 0-20 ppm
True NO2, NO, NOx
Nitrogen Oxide, True Nitrogen Dioxide
T200P 0-50 ppb / 0-4,000 ppb
T200UP 0-5 ppb / 0-2,000 ppb
     
  Carbon Compounds Instruments
Gas Model Ranges 
(Min/Max)
CO
Carbon Monoxide
T300U 0-100 ppb / 0-100 ppm
T300 0-1 ppm / 0-1,000 ppm
CO2
Carbon dioxide
T360 0-2 ppm / 0-2,000 ppm
     
  Oxygen Compounds Instruments
Gas Model Ranges 
(Min/Max)
O3
Ozone
T265 0-100 ppb / 0-2,000 ppb
T400 0-100 ppb / 0-10 ppm
430 0-100 ppb / 0-20,000 ppb
     
  Gas Calibrators & Zero Air Generators
Gas Model Ranges 
(Min/Max)
All gases T700U Available MFC’s: 0-10 cc/min to 0-20 LPM
T700 Available MFC’s: 0-10 cc/min to 0-20 LPM
T701 0-18 LPM, 30 PSI
T701H 0-30 LPM, 35 PSI
T750 Available MFC’s: 0-10 cc/min to 0-20 LPM
T750U Available MFC’s: 0-10 cc/min to 0-20 LPM
751 0-5 LPM, 30 PSI
751H 0-10 LPM, 30 PSI
O3
Ozone
T703 Ozone Output: 50 ppb to 10 ppm
T703U Ozone Output: 3 ppb to 10 ppm
T753U Ozone Output: 3 ppb to 10 ppm
     
  Particulate Instruments
Gas
Model​​Ranges  
(Min/Max)

Ultrafine Particle PM Mass Monitoring 651 <100nm, or 0.1µm in size particle #/cm3
Continuous real-time PM Mass Monitoring T640 PM2.5, PM10, PM10-2.5


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