O3-AH Ozone Sensor

O3 Gas Sensor, Electrochemical High-Sensitivity, A-Series, ppb–ppm measurement

High-sensitivity ozone sensor for process control and worker protection

The O3-AH is a high-sensitivity electrochemical ozone sensor in the A-Series package designed for ppb- to ppm-level O3 monitoring. It combines strong signal output with best-in-class baseline stability for process control, occupational health and safety and environmental monitoring. Typical applications include ozone disinfection systems, water and wastewater treatment, welding and leak detection, and room / surface sterilisation control. OEMs benefit from robust cross-sensitivity characterisation and the option of Integrated Smart Technology (O3-AH+) for plug-and-play integration.




  
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Key Specifications:

 

Sensor Model

Target Gas

Technology / Package

Concentration Range

Typical Sensitivity

T90 Response Time

Operating Life

O3-AH

Ozone (O3)

Electrochemical, 3- electrode, A-Series

0 – 20 ppm O3 (ppb–ppm capable)

–200 to –700 nA / ppm at 1 ppm O3

< 80 s (0 → 1 ppm step)

> 24 months (50% signal), 24-month warranted

Feature

Benefit

High-sensitivity ppb–ppm ozone measurement

Supports low-level O3 monitoring for worker exposure and process optimisation. 

Excellent baseline stability

Reduces drift and calibration overhead in long-term fixed and portable installations

A-Series 3-electrode package

Mechanical and electrical compatibility with other A-Series toxic sensors simplifies multi-gas instrument design.

O3-AH+ IST option

On-sensor temperature measurement and data storage underpin plug-and-play replacement and simplified compensation.

Characterised cross-sensitivities

Known responses to common interferents (e.g. NOx, Cl2) support robust algorithm development.