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Personal Ozone Monitor (POM)

2B Tech has taken the next step in miniaturization of UV-based ozone monitors by developing the ā€œworld’s smallest ozone analyzer.ā€ The POM is a handheld EPA-certified Federal Equivalent Method (FEM) ozone monitor that utilizes the measurement technique of UV absorption. The instrument is capable of providing highly accurate/precise ozone measurements in a package that is unique to the ambient ozone monitoring market.

  • 0-10 ppm measurement range with 1.5 ppb precision
  • Handheld with battery and GPS
  • EPA designated as a Federal Equivalent Method (FEM) for ozone: EQOA–0815–227.

Overview

  • POM unit has dimensions of 4 x 3 x 1.5 inches and weighs only 0.8 lb/360 g (without battery) or 1.0 lb/450 g (with battery)
  • Built-in GPS so that ozone measurements may be logged continuously along with geographic location
  • Folded “U” shaped optical path, allowing the instrument to achieve the same path length as the Models 106-L, 202, and 205
  • Read our paper on the POM, published in Analytical Chemistry:Ā Ā 

Miniature Personal Ozone Monitor Based on UV Absorbance, P.C. Andersen, C.J. Williford and J.W. Birks, Analytical Chemistry 82, 7924-7928 (2010).

  • Small (palm-sized)
  • Lightweight (~1 lb)
  • Same measurement principle (UV absorbance) and similar precision (~1.5 ppb) as much larger instruments
  • Approved as a Federal Equivalent Method (FEM) (EQOA-0815-227)
  • Measure ozone up to 10,000 ppb (10 ppm)
  • Belt clip and compact lithium-ion battery pack in side bracket for extreme portability
  • Adapters enable 100-240 VAC or 12V battery operation
  • Low power requirement: 3 watt
  • Internal data logger
  • Built-in GPS logs location along with ozone measurements
  • Fast 2-s or 10-s measurements
  • User-selected averaging times of 1 min, 5 min, or 1 hr
  • Serial or USB connections for data downloading
  • Personal Ozone Monitor
  • 1.25A power adapter
  • 7.4V lithium-ion battery
  • Battery charger
  • Serial port cable
  • Serial-USB adapter
  • USB cable
  • External ozone scrubber
  • Hex driver (3/32″)
  • Hex driver (7/64″)
  • USB flash drive preloaded with operation manual, other useful documentation, and driver for Serial-USB adapter
  • NIST-traceable calibration certificate
  • High-altitude upgrade (25km)
  • Analog output (0-5 V) upgrade
  • Pelican-brand carrying case available for purchase
  • Wall-mount bracket available for purchase
  • A Model to Evaluate Ozone Distribution and Reaction Byproducts in Aircraft Cabin Environments, J. He, Y. Yin, J. Pei, Y. Sun, Z. Liu, Q. Chen and X. Yang,Ā IndoorĀ Air: International Journal of Indoor Environment and HealthĀ (2022)Ā 32, 11.Ā Ā WIleyLink
  • Vertical Evolution of Black and Brown Carbon during Pollution Events over North China Plain, Q. Wang, L. Wang, C. Gong, M. Li, J. Xin, G. Tang, Y. Sun, J. Gao, Y. Wang, S. Wu, Y. Kang, Y. Yang, T. Li, J. Liu and Y. Wang,Ā Science of the Total EnvironmentĀ (2022)Ā 806, 4, 150950 .Ā Ā Science Direct
  • Overview of Lake Michigan Ozone Study 2017, C.O. Stanier, R.B. Pierce, M. Abdi-Oskouei, Z.E. Adelman, J. Al-Saadi, H.D. Alwe, T.H. Bertram, G.R. Charmichael, M.B. Christiansen, P.A. Cleary, A.C. Czarnetzki, A.F. Dickens, M.A. Fuoco, D.D. Hughes, J.P. Hupy, S.J. Janz, L.M. Judd, D. Kenski, M.G. Kowalewski, R.W. Long, D.B. Millet, G. Novak, B. Roozitalab, S.L. Shaw, E.A. Stone, J. Szykman, L. Valin, M. Vermeuel, T.J. Wagner, A.R. Whitehill and D.J. Williams,Ā Bulletin of the American Meteorological SocietyĀ (2021)Ā 102, 12, E2207-2225. Ā AMS Link
  • Understanding the Local and Remote Source Contributions to Ambient O3Ā during a Pollution Episode Using a Combination of Experimental Approaches in the Guadalquivir Valley, Southern Spain, M. in ā€˜t Veld, C. Carnerero, J. MassaguĆ©, A. Alastuey, J.D. de la Rosa, A.M. Sanchez de la Campa, M. Escudero, E. Mantilla, G. Gangoiti, C. PĆ©rez GarcĆ­a-Pando, M. Olid, J.R. Moreta, J.L. HernĆ”ndez, J. SantamarĆ­a, M. MillĆ”n and X. Querol,Ā Science of the Total EnvironmentĀ (2021)Ā 777, 144579.Ā Ā ScienceDirect
  • Air Quality Monitoring Using an Environmental Drone, M. Hayasaki,Ā JARI Research JournalĀ (2021), 20211001, 14 pp.Ā 2BTechLink

Specifications

Spec Sheet
Measurement Principle UV Absorption at 254 nm
Federal Equivalent Method (FEM) Yes, EQOA–0815–227
Linear Dynamic Range 0 ppb to 10 ppm
Resolution 0.1 ppb
Precision (1σ rms noise) Greater of 1.5 ppb or 2% of reading
Accuracy Greater of 1.5 ppb or 2% of reading
Limit of Detection (2σ) 3.0 ppb (10-s measurement mode, with default adaptive filter settings)
NIST-Traceable Calibration Yes
Measurement Intervals Measurement mode: 10 s (Fast mode: 2 s)
Flow Rate (nominal) ~0.8 Liter/min
Flow Rate Requirement >0.5 L/min
Baseline Drift < 2 ppb/day
< 5 ppb/year
Sensitivity Drift < 1%/day
< 3%/year
Measurement Time, Frequency 10 s, 0.1 Hz (Fast mode: 2 s, 0.5 Hz)
Response Time, 100% of Step Change For 10-s output: 20 s, 2 points (For 2-s output: 4 s, 2 points)
Averaging Times 1 min, 5 min, 1 hr
Data Storage 8,192 lines (2-s fast mode ~4.6 hr; 10-s meas. mode ~1 day; 1-min avg ~6 days; 5-min avg ~1 mo; 1-hr avg ~1 yr)
Ozone Units ppb
Pressure Units torr
Temperature Units K
T and P Corrected Yes
Operating Temperature Range 0 to 50 °C
Operating Altitude/Pressure Ranges ~0-13.5 km (150-1,013 mbar) [modifications for higher altitudes available as an option]
Power Requirement;
Supplied by battery or 110/220 VAC Power Pack
7-12 V dc, nominally 250 mA at 12 V, 3.0 watt
External Battery 7.4 Volt, 1.6 amp hour, Lithium Ion Battery, 5-8 hr
Size without GPS and battery: 4.0 x 3.0 x 1.5 inches (10.2 x 7.6 x 3.8 cm)
add GPS: 5.0 x 3.0 x 1.5 in (12.7 x 7.6 x 3.8 cm)
Weight without battery: 0.8 lb (0.36 kg)
with battery: 1.0 lb (0.45 kg)
Data Transfer Baud Rate 19200
DewLineā„¢ Yes
GPS Yes
Options Analog output; wall-mount bracket; modifications for higher altitude operation; Pelican-brand carrying case

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Case Studies

In this study, the 2B Tech Personal Ozone Monitor (POM) was flown on a drone above Chesapeake Bay, to investigate the chemistry inside the plume of a large freighter at sea. The versatility of the POM was showcased in this work, which also made use of another POM to make complementary measurements at a ground station nearby.

"A very compact, lightweight, rugged and accurate instrument. A great product! A great group of people!"
Anonymous Customer Feedback

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