3-in-1 Ozone Temperature Humidity Transmitter RS485 Modbus RTU 0-100ppm Integrated Air Quality Detector

Working, counter, and reference electrodes maintain stable potential. Reduction at the working electrode generates current directly proportional to O3 concentration for accurate ppm-level detection.

Two selectable ranges cover trace-level indoor air quality and disinfection monitoring up to high-concentration industrial ozone process control within a single product series.

Fine 0.01ppm resolution on the low range captures subtle ozone fluctuations critical for monitoring in food processing, medical, and water treatment facilities.

Duct model features a dedicated anti-interference circuit design that withstands strong electromagnetic disturbances from frequency converters and industrial motors inside ventilation pipelines.

Direct duct insertion exposes the sensor to concentrated airflow, achieving sub-35-second response compared to 180 seconds for wall-mounted natural diffusion models in the same product line.

Consistent repeatability under 2% and drift under 7% per year enable reliable long-term ozone trend monitoring without frequent recalibration in fixed continuous monitoring deployments.

RS485 wall-mounted model supports an add-on temperature and humidity module, enabling 3-parameter monitoring of O3, temperature, and humidity in one housing without additional sensors.

Duct model offers an OLED display add-on for real-time ozone concentration readout on-site without connecting to external devices.

RS485 variant draws only 0.1W across a 10 to 30VDC wide-voltage range, supporting flexible power infrastructure from solar panels to industrial panel supplies without voltage regulation.

Each unit ships fully calibrated. No secondary on-site calibration is required, eliminating reference gas equipment needs and reducing setup time from installation to first reliable reading.