AR8406 Dissolved Oxygen Meter: Precision for Demanding Applications

The AR8406 is a state-of-the-art portable dissolved oxygen meter engineered to deliver laboratory-grade accuracy and robust reliability in the most challenging field and industrial environments. Designed for water quality professionals, environmental researchers, and aquaculture operators, this instrument provides critical insights into oxygen levels, a fundamental parameter for assessing ecosystem health, process efficiency, and compliance.

At the heart of the AR8406 is an advanced optical dissolved oxygen (ODO) sensor. Unlike traditional polarographic sensors that require constant stirring, electrolyte refills, and lengthy stabilization times, the optical technology utilizes a fluorescence-based method. A specially formulated luminescent material (luminophore) is excited by a blue light from an LED. The meter precisely measures the phase shift of the returned red light, which is inversely proportional to the oxygen concentration. This principle ensures highly accurate, stable readings unaffected by flow rate, minimizes calibration frequency, and eliminates the maintenance hassles of membranes and electrolytes.

The AR8406 is built for functionality and durability. Its IP67-rated waterproof casing protects against dust and immersion, while a large, backlit LCD clearly displays readings for DO concentration (mg/L or ppm), saturation (%), temperature, and barometric pressure—which is automatically compensated for via the integrated sensor. Data logging capabilities allow for the storage of thousands of measurements, which can be easily transferred to a computer for further analysis and reporting.

Ultimately, the AR8406 empowers users with confidence. Whether monitoring wastewater treatment plant effluents, conducting environmental impact studies, or managing oxygen levels in fish farms, this meter delivers the precision, durability, and user-friendly operation required to make informed decisions quickly and efficiently. It represents the optimal fusion of sophisticated optical sensing technology and practical, field-ready design.