Recent ​News

  • Introducing the Black Carbon Photometer:  In December 2018, 2B Tech launched the newest member of its lineup, the Black Carbon Photometer (BCP). The 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. 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.  Find more info here.
  • Paper Published: Portable Ozone Calibration Source (our Model 306): We published a new paper in August 2018 in the journal Atmospheric Measurement Techniques.  It describes our Model 306, a highly portable ozone calibration source that can serve as a U.S. EPA level 4 transfer standard for calibration of ozone analyzers. Detailed performance data are presented.  Please visit our product page for more info about the Model 306.
  • Paper Published: The Folded Tubular Photometer (our Model 405 nm NO2/NO/NOx Monitor):  We published a new paper in May 2018 in the journal Atmospheric Measurement Techniques describing the folded tubular photometer that's at the heart of our Model 405 nm monitor for simultaneous measurement of NO2, NO, and NOx.  The Model 405 nm is a designated Federal Equivalent Method for NO2, which is measured directly by absorbance at 405 nm.  Please visit our product page for more info about the Model 405 nm. 
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  • New Tech Note -- How to Use the Relays on the Model 106 Ozone Monitors:   Our latest Tech Note addresses questions we frequently get about how to use the relays on our Model 106 Ozone Monitors.  It gives several illustrated examples of how to use relays to control ozone generators and alarms, and how to use the 2 relays in combination to create a system override for an ozone generator.  Check out Tech Note 45!
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  • Introducing the New Model 211-G Ozone Monitor (FEM):  The newest member of our product lineup, the Model 211-G Ozone Monitor, uses the proven ultraviolet (UV) absorption method in combination with our patent-pending 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-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.  It offers a precision of 0.5 ppb for 10-s averaging, a linear dynamic range of 0-2,000 ppb, SD data logging, and other features.  The heated graphite scrubber of the new Model 211-G eliminates the need for the nitrous oxide source required by our Model 211 Scrubberless Ozone Monitor.  ​
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  • New Multi-Channel Option for Our 106-Series Ozone Monitors:  A new optional Multi-Channel configuration of our Model 106 Ozone Monitor enables you to characterize as many as six different gas streams.  The sequential sampling can be done automatically, using a sampling interval you specify.  The Multi-Channel Ozone Monitor is inside a wall-mount enclosure that is suitable for mounting in your air sampling system.  We offer the Multi-Channel option on our Model 106-L, -M, and -MH Ozone Monitors, enabling you to choose the instrument that is right for the range of ozone concentrations you need to measure.
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  • New FEM for NO2:  Our Model 405 nm NO2/NO/NOx Monitor has been designated as a Federal Equivalent Method for NO2 (EQNA-0217-243).  In the Model 405 nm, the NO2 is measured directly by absorbance at 405 nm, analogous to an ozone monitor.  This approach distinguishes the Model 405 nm from chemiluminescence-based instruments, in which NO2 must be converted to NO using either a molybdenum or photolytic converter with highly variable efficiency.  The wavelength of 405 nm was chosen because no other species found in ambient air has significant absorbance at that wavelength, making the Model 405 nm extremely selective for NO2.  The versatile Model 405 nm also measures NO and NOx (NO by conversion to NO2 using ozone, and NOx is determined as the sum of NO2 plus NO).  More info
  • A New Free App from 2B Tech:  There's a newcomer in the world of apps!  2B Tech has developed a free app for ozone calculations and conversions--the first of its kind.  Go to iTunes or the Google Play store and search for "ozone converter" to get the iPhone or Android version of the app.  The app makes it easy for you to convert between different units for ozone concentration, and has a full range of ozone generator calculations used in the ozone industry, along with detailed explanations of the calculations. We've also expanded our website to provide these same useful calculations here.  ​

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