Ozone Monitor-106-L, -M, -MH, and -H

  • Industrial Ozone Applications
  • Measurement based on UV absorption
  • Low maintenance
  • Low power consumption; can be battery operated
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For industrial ozone applications, 2B Tech offers the Model 106-L, 106-M, 106-MH and 106-H Ozone Monitors, where L, M, MH and H refer to Low (0-100 ppm), Medium (0-1,000 ppm)06-, Medium-High (0-10,000 ppm) and High (0-20 wt%) ozone concentrations, respectively. These instruments have different optical path lengths in order to accommodate an extremely wide range of ozone concentrations, spanning more than eight orders of magnitude. Additionally, the Model 106-H was designed with a flow-through path that can be pressurized to up to 50 psi for in-line measurements with ozone generators. All four models are available in either a standard enclosure or Industrial enclosure. Configurations for multi-channel sampling are available for Models 106-L, 106-M, and 106-MH.

The Model 106 series was designed as an "ozone monitor on a board" in which nearly all of the components are mounted directly to the printed circuit board. Thus, the Model 106 may be purchased without the enclosure for OEM applications. See: Model OEM-106.

The Model 106-L is designed for ambient low measurements down to very low ppb levels and has been designated by the EPA as a Federal Equivalent Method (FEM) for monitoring for compliance with the US Clean Air Act: EQOA–0914–218.

Specifications for Different Optical Benches

Model Range Resolution Precision & Accuracy
106-L 0-100 ppm 0.0001 ppm (0.1 ppb) Higher of 0.002 ppm (2 ppb) or 2% of reading
106-M 0-1,000 ppm 0.01 ppm Higher of 0.01 ppm or 2% of reading
106-MH 0-10,000 ppm (0-1 vol%) 0.1 ppm Higher of 0.05 ppm or 2% of reading
106-H 0-20 wt% O2 or Air
0-14 vol%
0.01 wt%
0.01 vol%
Higher of 0.01 wt% or 2% of reading

General Specifications

Measurement Principle UV Absorption at 254 nm, single beam
Measurement Interval 2 s
Data Averaging Options 10 s, 1 min, 5 min, 1 hr
Nominal Flow Rate ~1 Liter/min; Up to 20 L/min for Model OEM-106-H
Data Storage 32,736 lines (10 s avg. = 3.7 days; 5 min avg = 113 days)
Choice of Units ppb, ppm, pphm, µg m-3, mg m-3 (for Models OEM-106-L and OEM-106-M)
ppm, mg m-3 (for Model OEM-106-MH)
vol%, wt% air, wt% O2, g/m3, g/Nm3 (for OEM-Model 106-H)
Data Outputs USB, RS232, 0-2.5 V Analog, 4-20 mA, LCD Display
Power Requirements 100-240 V AC, 50/60 Hz
11-28 V DC, nominally 500 mA at 12 V, 6 watt (for Models OEM-106-L, -M, -MH)
11-28 V DC, nominally 325 mA at 12 V, 3.9 watt (for Model OEM-106-H)
Size 2.5 x 7 x 9 inches (6.4 x 17.8 x 22.9 cm)
Weight 2.8 lb (1.3 kg) (for Model OEM-106-L)
2.5 lb (1.1 kg) (for Models OEM-106-M and -MH)
2.9 lb (1.3 kg) (for Model OEM-106-H)


  • Measurement based on UV absorption
  • Low maintenance
  • Low power consumption; can be battery operated
  • Internal data logger with real-time clock
  • 2-s measurement interval
  • On-board microprocessor with interactive menus includes data averaging options of 10 s, 1 m, 5 m and 1 hr
  • USB and RS-232 output of time/date, O3 concentration, internal temperature and pressure
  • Analog output (0-2.5 V and 4-20 mA) of ozone concentration in user-selected units
  • Two 2-level relays for control purposes (e.g., control of ozone source or turn warning light on and off)
  • Long-life pump (15,000 hr) for Models OEM-106-L, OEM-106-M and OEM-106-MH

Industrial Technical Services from Mississauga, Ontario is a single source Instrumentation and Automation company. We provide certified calibrations, PLC programming, custom controls and Panels.

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