Ozone gas detector

Aeroqual delivers very high quality products based on a fundamental understanding of the chemistry, reaction rates and electronic interactions between materials and gases.

Gas Sensitive Semiconductor (GSS) technology is exclusive to Aeroqual. It is a combination of smart measurement techniques and mixed metal oxide semiconductor sensors that exhibit an electrical resistance change in the presence of a target gas.

Click here to view more details on the
GSS Measurement Technology

Click here to view a complete overview of
aeroQUAL and their technologies

Aeroqual's ozone monitors are designed with “active sampling” to maximize air sampling at the sensor minimising ozone losses. Expensive analytical instruments also employ active sampling e.g. UV photometry. Products without “active sampling” (electrochemical and conventional HMOS products) will normally under-read ozone concentrations below 200 parts per billion and struggle with sensitivity and accuracy, particularly in low air flow. “Active sampling” requires air to be blown or pumped to the sensor under precise flow conditions. Aeroqual fan based monitors are designed to be held at right angles to any direct stream being measured. Avoid forcing pressurized air into active sampling monitors. Air inlets are manufactured from cleaned stainless steel mesh and fluoropolymer materials to minimize ozone loss.

Click here to read our Technical Note on Measuring Ozone

The table below shows the four different sensor heads that can be interchanged with any of the portable or fixed instruments offered by Aeroqual. Please peruse the instruments by navigating through our website.

Low Concentration Sensor Heads
High Concentration Sensor Heads
Leak Detection Sensor Heads
Controlled Atmosphere Sensor Heads

Sensor Heads	Ultra-Low	Low	High	Leak
Measurement range	0.000 - 0.150 ppm	0.000 - 0.500 ppm	0.50 - 20.00 ppm	0.00 - 50.00 ppm
Accuracy	< ± 0.005 ppm	< 0.008 ppm (0-0.100ppm) ± 10% (0.100 – 0.500 ppm)	± 10%(0.20 - 2.00ppm) ± 15% (2.00 - 20.00 ppm)	± 20%, 15 seconds after Reset
Resolution	0.001 ppm	0.001 ppm	0.01 ppm	0.01 ppm
Controlled Atmosphere Version	Available on Request	Available on Request	Available on Request	Available on Request
T90 Response	< 70 seconds (T90)	< 60 seconds (T90)	< 35 seconds (T90)	< 10 seconds
Sensor type	Gas-sensitive semiconductor
Operating temperature range	-5°C to 50°C; 23°F to 122°F (sensor head and base unit)
Relative humidity limit	95% maximum (sensor head and base unit)

Aeroqual Product Overview

Ozone in Antarctica

Evaluation by the University of Cambridge

Home| Contact Us |