Ambient Ozone Monitors
Model 202 Ozone Monitor
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The Model 202 Ozone Monitor is designed to enable accurate and precise (±1.5 ppb) measurements of ozone ranging from a few ppb to 250,000 ppb (0-250 ppm) based on the well-established technique of UV absorbance at 254 nm. The Model 202 is lightweight (5.5 lb, 2.5 kg) and has a power consumption of only ~7 watts. It can be used in almost any application where much larger ozone monitors have been used in the past and in many environments where measurements using traditional ozone monitors are impossible. Flash card memory and a quiet, long-life internal air pump are now standard on the Model 202. The Model 202 has been certified by the EPA as a Federal Equivalent Method (FEM): EQOA-0410-190. The Model 202 has been used for the past decade in ozone monitoring networks of the U.S. National Park Service and National Forest Service. It also is widely used by NOAA, EPA, Environment Canada and the British Antarctic Survey for studies of ground-level ozone.
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Model 205 Ozone Monitor
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The Model 205 Dual Beam Ozone Monitor™ was designed for even higher precision and faster response time than our popular Model 202. Data may be output as frequently as every 2 seconds, making it ideal for vertical profiling using balloons or aircraft measurements where high temporal resolution is required. For a given averaging time, the Model 205 has a higher precision (better than 1 ppb for 10 s averaging) and a more stable baseline than the Model 202. The Model 205 has all of the features of the Model 202 single beam instrument, including a real time clock; averaging times of 10 s, 1 min, 5 min and 1 h; an internal data logger; and serial and analog data outputs. Flash card memory and a long-life, quiet internal air sampling pump are now standard on the instrument. The Model 205 Ozone Monitor has been designated as a Federal Equivalent Method (FEM) by the EPA (EQOA-0410-190).
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Model 106-L Ozone Monitor
Industrial Enclosure
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The Model 106 series of ozone monitors comprise single beam ozone monitors similar to the Model 202 in size, weight and power consumption. The 106-L, -M,-MH and -H instruments were originally designed for industrial ozone applications. However, the lower cost 106-L ozone monitor may be used for air pollution studies as well and was installed at more than 100 stations around the world in our Global Ozone Project educational outreach program. The Models 106-L and OEM-106-L have been designated by the US EPA as a Federal Equivalent Method (FEM): EQOA–0914–218. The Model 106-L was designed for manufacturability, resulting in a lower cost and more robust instrument. In the near future, the Model 106 series will include a touchscreen as the user interface. The instrument can be provided in an Industrial enclosure.
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Model 106-L-OEM Ozone Monitor
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For OEM applications where users want to integrate their ozone monitor into a complex system such as an air pollution measurement package, we offer an "Ozone Monitor on a Board™" solution. The entire ozone monitor is mounted on a single printed circuit board. The liquid crystal display and power switch may be removed and mounted outside the package if desired. The OEM board may be purchased with one of four different optical benches to optimize measurements in four different concentration ranges as follows: OEM-106-L 0-100 ppm with 0.0001 ppm (0.1 ppb) resolution OEM-106-M 0-1,000 ppm with 0.01 ppm resolution OEM-106-MH 0-10,000 (1 % vol) with 0.1 ppm resolution OEM-106-H 0-20% by weight with 0.01% resolution The Model OEM-106-L has been designated by the US EPA as a Federal Equivalent Method (FEM): EQOA–0914–218. More Info Quote Request |
Model 211 Scrubberless Ozone Monitor
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The Model 211 Scrubberless Ozone Monitor uses the proven ultraviolet (UV) absorption method in combination with an innovative gas-phase scrubber technology to measure ozone virtually free from interferences. The Model 211 is ideally suited for measurements of ozone in heavily polluted air where interferences from particulates, mercury and VOCs may be significant. The new Model 211 combines the stability of our Model 205 Dual Beam Ozone Monitor with our selective scrubber technology to provide highly accurate ozone measurements in the most polluted air. The enhanced optical path length of 30 cm provides a precision of better than 0.5 ppb for 10-second measurements, and the instrument can output new ozone measurements as often as every 2 seconds. SD card data logging is now a standard feature. The Model 211 has been designed by the EPA as a Federal Equivalent Method (FEM), EQOA–0514–215, and is being considered as new Federal Reference Method (FRM) for ozone.
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Model 211-G Ozone Monitor
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The new Model 211-G Ozone Monitor uses the proven ultraviolet (UV) absorption method in combination with our patented heated graphite scrubber technology to measure ozone virtually free of interferences. The instrument is ideally suited for measurements of ozone in heavily polluted air where interferences are likely from particulates, mercury, and/or VOCs. The Model 211 combines the stability of our proven dual beam ozone monitors with our selective scrubber technology to provide accurate ozone measurements in the most polluted air. The enhanced optical path length of 30 cm provides a precision of better than 0.5 ppb for 10-second measurements, and the instrument can output new ozone measurements as often as every 2 seconds. The Model 211-G comes with SD flash card memory as a standard feature. The Model 211-G Ozone Monitor has been designated by the EPA as a Federal Equivalent Method (FEM) as a modification to our Model 211 Scrubberless Ozone Monitor: EQOA-0514-215. The Model 211-G offers the ability to measure ozone in heavily polluted urban air with negligible interferences without the use of the nitrous oxide source required by the Model 211.
Use of either the Model 211 or Model 211-G in place of conventional ozone monitors has the potential to bring many regions into compliance with the new national ambient air quality standard simply by making a more accurate measurement. More Info Request Quote |
Personal Ozone Monitor (POM)
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2B Tech has taken the next step in miniaturization of UV-based ozone monitors by developing the Personal Ozone Monitor or "POM." The POM has dimensions of 4 x 3 x 1.5 inches and weighs only 0.75 lb. (340 g). It has a built in GPS so that ozone measurements may be logged continuously along with geographic location. Like all of our ozone instruments, the measurement is based on UV absorbance. It does NOT use a solid-state or electrochemical sensor, both of which are prone to interferences and baseline drift. By folding the optical path in the shape of a "U," it was possible to achieve the same path length in the POM as in the Models 202, 205, and 106-L and thus have similar precision and accuracy (~1.5 ppb). The POM is ideal for personal ozone exposure studies and health and safety monitoring in workplaces where ozone is produced. The US EPA has designated the POM as a Federal Equivalent Method (FEM): EQOA–0815–227.
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Model 306 Ozone Calibration Source
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The Model 306 Ozone Calibration Source is a highly portable ozone transfer standard that may be used to calibrate any ozone monitor or sensor. Ozone is generated at any chosen concentration in the range 0-1000 ppb in ozone-scrubbed ambient air at a volumetric flow rate of 3 L/min. No external air source is required. The instrument may be programmed to output a series of up to 10 ozone concentration steps with a chosen time interval. It also has a scheduler that permits the user to schedule an autocalibration once daily. The Ozone Calibration Source is provided with a NIST-traceable calibration, and the menu allows the user to calibrate the output to their own reference instrument. This Ozone Cal Source, which qualifies as an EPA transfer standard, is particularly useful for calibrating networks of ozone monitors in the field.
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Ozone Monitors for the Ozone Industry
Model UV-106-W Aqueous Ozone Monitor
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The Model UV-106-W Aqueous Ozone Monitor™ uses our patented MicroSparge™ technology to measure dissolved ozone in either dirty or clean water. Unlike conventional dissolved ozone monitors, the instrument does NOT make use of a membrane that will foul over time. Instead, dissolved ozone is measured by sparging (bubbling) of ~2 mL of water with ozone-scrubbed ambient air and integrating the gas-phase concentration of ozone stripped from solution. Because ozone is measured in the gas phase, there are no interferences from particles and dissolved inorganic or organic compounds.
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Model 106-L Ozone Monitor for Ambient and Industrial Ozone Measurements
Industrial Enclosure
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The Model 106-L is designed for ambient ozone monitoring for health and safety monitoring in an industrial ozone setting based on the accurate method of UV absorbance. A simple design with all components mounted to a single printed circuit board and a long-life pump make the instrument highly reliable and robust. Ozone is measured in the range 0-100 ppm (0-100,000 ppb) with a resolution of 0.1 ppb. Precision and accuracy for this low-concentration ozone monitor are ±2 ppb or 2% of reading. The Model 106-L has been designated by the US EPA as a Federal Equivalent Method (FEM): EQOA–0914–218. The instrument can be provided in an Industrial enclosure or as an OEM "Ozone Monitor on a Board" for incorporation into users' systems.
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Model 106-M Ozone Monitor for Off-Gas Measurements
Industrial Enclosure
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The Model 106-M provides ozone measurements by UV absorbance in the 0-1,000 ppm concentration range with a resolution of 0.01 ppm (10 ppb). This medium range ozone monitor can be used for ambient monitoring as well as off gassing from ozone-treated water. The instrument can be provided in an Industrial enclosure or as an OEM "Ozone Monitor on a Board" for incorporation into users' systems.
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Model 106-MH Ozone Monitor for Measurements of Off-Gas and Ozone Generator Output
Industrial Enclosure
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The Model 106-MH provides ozone measurements by UV absorbance in the 0-10,000 ppm (0-1% vol) concentration range with a resolution of 0.01 ppm (10 ppb). This medium-high range ozone monitor can be used for measuring ozone offgas as well as the output for lower concentration ozone generators. The instrument can be provided in an Industrial enclosure or as an OEM "Ozone Monitor on a Board" for incorporation into users' systems.
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Model 106-H Ozone Monitor for Measurements of the Outputs of High Concentration Ozone Generators
Industrial Enclosure
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The Model 106-H is a high concentration ozone monitor designed for measuring and controlling output concentration of a high concentration ozone generator. Ozone is measured in the range 0-20 wt% with a precision of 0.01 wt% or 2% of reading by the method of UV absorbance. The instrument can be provided in an Industrial enclosure or as an OEM "Ozone Monitor on a Board" for incorporation into users' systems.
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Model 106-OEM Series Available for L, M, MH and H Models
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The Model OEM-106 series is available in an OEM version (no instrument case) for our customers who want to build an ozone monitor into their own package. The 106 series is designed such that all components are mountable to a single printed circuit board, making it ideal for incorporation into custom ozonation equipment. The Model OEM-106-L has been designated by the US EPA as a Federal Equivalent Method (FEM): EQOA–0914–218. More Info Request Quote |
Model 108 Series Ozone Monitors
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Ozone Monitors in our Model 108 Series offer a bare-bones "ozone monitor on a board" for easy integration into your system. With no pump and no enclosure case, instruments in this series offer the same range and precision as their Model 106 counterparts. Choose the -L, -M, -MH, or -H depending on your measurement needs. The Model 108-L has been designated by the US EPA as a Federal Equivalent Method (FEM): EQOA–0914–218.
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Personal Ozone Monitor (POM)
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The Personal Ozone Monitor (POM™) is the "World's Smallest Ozone Monitor." Like all of our ozone instruments, the measurement is based on UV absorbance. It does NOT use a solid-state or electrochemical sensor, both of which are prone to interferences and baseline drift. Accuracy and precision comparable to that of the Model 202 and 106-L were achieved by bending the optical path using mirrors. The POM has dimensions of 4 x 3 x 1.5 inches and weighs only 0.75 lb. (340 g). It has a built in GPS so that ozone measurements may be logged continuously along with geographic location. The POM™ is recommended for personal monitoring and any application, such as balloons and UAVs, where size and weight are critical. The US EPA has designated the POM as a Federal Equivalent Method (FEM): EQOA–0815–227.
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Model 306 Ozone Calibration Source
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The Model 306 Ozone Calibration Source is a highly portable ozone transfer standard that may be used to calibrate any ozone monitor or sensor. Ozone is generated at any chosen concentration in the range 0-1000 ppb in ozone-scrubbed ambient air at a volumetric flow rate of 3 L/min. No external air source is required. The instrument may be programmed to output a series of up to 10 ozone concentration steps with a chosen time interval. It also has a scheduler that permits the user to schedule an autocalibration once daily. The Ozone Calibration Source is provided with a NIST-traceable calibration, and the menu allows the user to calibrate the output to their own reference instrument. This Ozone Cal Source, which qualifies as an EPA transfer standard, is particularly useful for calibrating networks of ozone monitors in the field.
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NO, NO2 and NOx Monitors
Model 405 nm NO2/NO/NOx Monitor
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The Model 405 nm NO2/NO/NOx Monitor™ measures nitrogen dioxide (NO2) directly by absorbance at 405 nm using a patented folded cell with corner mirrors to achieve a ~2-meter path length. Nitric oxide (NO) is measured by modulating the addition of ozone to quantitatively convert NO to NO2. This new instrumental approach has the advantages over chemiluminescence of being an absolute method and of requiring much less power, enabling portable measurements of NO2, NO and NOx. SD card data logging is now a standard feature.
The Model 405 nm NO2/NO/NOx Monitor is designated as a Federal Equivalent Method (FEM) for NO2 compliance monitoring (EQNA-0217-243) and is TUV-certified (QAL1) under European standards EN14211 and EN15267 (certificate 0000062070). More Info Request Quote |
Black Carbon Photometer
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The Black Carbon Photometer™ (BCP™) is a rugged, portable, highly accurate and economical instrument for the direct measurement of atmospheric black carbon particulates in polluted urban environments, without the need for preconcentration. The BCP uses the simple and direct technique of long-path photometry at two wavelengths (405 nm and 880 nm) to quantify—in real time—the total extinction and mass concentrations of particulates in the aerosol (gas + particle) phase. This direct approach avoids the artifacts and other issues associated with current commercially available instruments, such as the most common current technique of aethalometry that uses filters to preconcentrate samples for analysis. The detection cell of the Black Carbon Photometer has a folded tubular design, a patented innovation that enables highly sensitive and fast measurements of black carbon in a compact, rack-mount sized instrument. The Black Carbon Photometer is useful for researchers studying the role of black carbon in air quality and climate, and for air quality managers interested in estimating community exposure risks.
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Mercury Monitor
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The HERMES Personal Mercury Monitor™ is the next step in miniaturization of UV-based mercury monitors. A folded optical path enables the HERMES to deliver extremely sensitive measurements of mercury in the atmosphere (~2 g/m3 detection limit for Hg and a linear dynamic range of 0-2000 g/m3 Hg with 0.1 g/m3 Hg resolution). The compact, lightweight design of HERMES makes it well suited to applications such as workplace and industrial monitoring, personal exposure monitoring for studies of health effects of air pollutants, and monitoring at remote locations.
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Instrument/Sensor Packages
Personal Air Monitor (PAM)
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The Personal Air Monitor (PAM) was originally developed for our AQTreks educational outreach program and is now available for purchase as well. The PAM makes use of the most reliable sensors for air quality measurements for the species CO, CO2 and particulate matter. The PAM broadcasts data via Bluetooth to nearby mobile phones, and those data can be viewed on a map and as a time series on our AQTreks or 2B Connect mobile apps. Data obtained by the PAM can be uploaded via WiFi or the cell phone (or its own cellular connection, if this option is purchased) to the 2B Tech Data Portal on the web, where the data can be visualized in a variety of ways and downloaded for further analysis. Besides use as an educational tool, the PAM has found use in research and monitoring, such as the US National Forest Service studies of forest fire smoke dispersion.
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AQSync, Complete Air Monitoring Package
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The AQSync Air Quality Monitoring Station, developed with support of a Phase II Small Business Innovative Research Grant (SBIR) from the National Science Foundation, is the ultimate compact monitoring package that allows measurements of all of the most important air pollutants using a combination of miniaturized instruments.
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The AQLite Air Monitoring Packages are the ultimate combination of performance and size for an air quality measurement system. These packages combine our US EPA approved Federal Equivalent Method (FEM) Model 108-L Ozone Monitor with proven sensor technology for other pollutants in a customizable package that can be deployed in a wide variety of air monitoring applications.
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Calibrators
Model 714 NO2/NO/O3 Calibration Source
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The Model 714 NO2/NO/O3 Calibration Source™ combines our Model 408 Nitric Oxide Calibration Source™ with our Model 306 Ozone Calibration Source™ to provide a highly portable transfer standard for three pollutant gases without the need for a compressed gas cylinder of nitric oxide. Calibrated concentrations of O3 are produced by photolysis of oxygen, and calibrated concentrations of NO are produced by photolysis of nitrous oxide. In addition, calibrated concentrations of NO2 are produced by gas-phase titration of NO with O3. Calibrations sequences can be programmed in internal memory via a user-friendly touch screen interface, and the instrument can be operated remotely via a Modbus TCP/IP interface and Ethernet connection to a computer.
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Model 306 Ozone Calibration Source
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The Model 306 Ozone Calibration Source is a highly portable ozone transfer standard that may be used to calibrate any ozone monitor or sensor. Ozone is generated at any chosen concentration in the range 0-1000 ppb in ozone-scrubbed ambient air at a volumetric flow rate of 3 L/min. No external air source is required. The instrument may be programmed to output a series of up to 10 ozone concentration steps with a chosen time interval. It also has a scheduler that permits the user to schedule an autocalibration once daily. The Ozone Calibration Source is provided with a NIST-traceable calibration, and the menu allows the user to calibrate the output to their own reference instrument. This Ozone Cal Source, which qualifies as an EPA transfer standard, is particularly useful for calibrating networks of ozone monitors in the field.
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