106-H Ozone Monitor™

  • For Measuring Output of High Concentration Ozone Generators (0-20 wt%)
  • Measurement based on UV absorption
  • Low power consumption (optional external lithium-ion battery)
  • Internal data logger with real-time clock
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The Model 106 series of ozone monitors was designed specifically for the industrial ozone industry to cover four different ozone concentration ranges by varying the optical path length. The ranges are: -L (low, 0-100 ppm); -M (medium, 0-1,000 ppm); -MH (medium high, 0-10,000 ppm, 0-1 vol%) and -H (0-20 wt%, 0-14 vol%). The Model 106 series is designed as an "ozone monitor on a board" in which nearly all of the components are mounted directly to the printed circuit board with very few wire connections, making these instruments highly robust and very easy to service. As seen in the images above, all models are available in a standard enclosure, an Industrial enclosure, or with no enclosure for OEM applications for those who want to mount the instrument in their own enclosure or use it as a component of a larger system. For more details on OEM applications see: Model OEM-106. Configurations for multi-channel sampling are available for Models 106-L, 106-M, and 106-MH.

The Model 106-H Ozone Monitor is designed specifically for measuring the output of high concentration ozone generators that produce ozone in either air or oxygen by either UV light or corona discharge. This model differs from other 106-series ozone monitors in that it is flow through with no air pump and the plumbing is designed for high pressure (up to 50 psig) and partial vacuum.


Measurement Principle UV Absorption at 254 nm, single beam
Measurement Interval 2 s
Linear Dynamic Range 0-20 wt%
Resolution 0.01 wt%
Precision (1σ for 10-s average; aka rms noise) 0.01 wt% or 2% of Reading
Limit of Detection (10-s averaging, 2σ) 0.02 wt%
Accuracy 0.01 wt% or 2% of Reading
Baseline Drift < 0.02 wt%/day, < 0.05 wt%/month
Sensitivity Drift < 1%/day, < 3%/year
Calibration Iodide Titration; annual calibration recommended
Measurement Time and Frequency 2 s, 0.5 Hz
Data Averaging Options 10 s, 1 min, 5 min, 1 hr
Response Time, 100% of Step Change For 2-s output: 4 s, 2 data points
For 10-s output: 20 s, 2 data points
Flow Rate Nominal: Up to 20 L/min; Maximum: 55 L/min
0.5 L/min required for 4-s response time at 2-s output
Data Logger Capacity 32,736 lines (10 s avg. = 3.8 days; 5 min avg = 113 days)
Data Transfer Baud Rates 2400, 4800, 19200
Ozone Units g m-3, g Nm-3, vol%, wt% air, wt% O2
Temperature Units oC, oF, K
Pressure Units mbar, psi, torr
T and P Corrected Yes
Operating Temperature Range 0 to 50oC
Operating Altitude Range 0 to 5 km
Power Requirements 100-240 V AC, 50/60 Hz;
11-28 V DC, nominally 250 mA at 12 V DC, 3 watt
Digital Data Outputs USB, RS232, LCD Display
Analog Data Outputs 0-2.5 V Analog, 4-20 mA, User-Scalable in Menu
Relays with 2 Setpoints Two available:
Relay 1 responds based on user's ozone set points
Relay 2 responds based on user's ozone set points OR responds based on diagnostics (T, P, flow, lamp voltage)
Four relays provided on Industrial models
Bluetooth Option Available Yes
Size Standard: 3.6 x 7.9 x 9.4 inches (9 x 20 x 24 cm)
OEM: 2.5 x 7 x 9 inches (6.4 x 17.8 x 22.9 cm)
Industrial: 16 x 14 x 9.3 inches (40.7 x 35.7 x 23.6 cm) H x W x D
Weight Standard: 4.8 lb (2.2 kg)
OEM: 3.3 lb (1.5 kg)
Industrial: ~14 lb (6.4 kg) depending on multi-channel options present


  • Measurement based on UV absorption
  • Low power consumption; can be battery operated (optional external lithium-ion battery)
  • 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, 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 and scaling factors
  • Two 2-level relays for control purposes (e.g., control of ozone source or turn warning light on and off); Four relays provided on Industrial models
  • Bluetooth option for wireless data transmission

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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