AZ86021

The AZ86021 is a handheld 6-in-1 water quality meter that measures pH, conductivity, TDS, salinity, dissolved oxygen and temperature in one device. Made by AZ Instrument and supplied by Gerteise, it is designed for field and laboratory water testing in aquaculture, hydroponics, wastewater and environmental monitoring.

Yes. The AZ86021 has an IP67 waterproof rating, meaning it is protected against dust and temporary immersion in water up to 1 meter for 30 minutes. It can be used reliably outdoors, at pond sides and in humid field conditions without damage from rain or splashes.

The AZ86021 measures six parameters simultaneously and stores up to 99 data sets in its internal memory for later review. This makes it practical for routine monitoring rounds where multiple sampling points must be logged across a day of field work.

The AZ86021 covers a pH range of 2.00 to 12.00, which spans the vast majority of water quality applications, from acidic aquaculture ponds to alkaline industrial effluent. For reliable accuracy, periodic calibration with standard buffer solutions is recommended.

Yes. Salinity is one of its six built-in measurement modes, along with conductivity and TDS. It is widely used in marine aquaculture, shrimp and fish farming, and hydroponic nutrient solution management where salt levels must be tracked continuously.

The AZ86021 uses a replaceable combination probe, and routine maintenance is simple: rinse the probe with clean water after each use, store it with the protective cap on, and calibrate the pH electrode regularly with buffer solutions. Replacement probes are available through Gerteise.

Contact Gerteise through the inquiry form on this page or email info@gerteise.com. We supply the AZ86021 with volume pricing, prototype samples and OEM customization support, and typically respond within 24 hours.

It is built for professional field work: IP67 protection, six-parameter measurement, multi-range conductivity (0–199.9 μS/cm up to 0–150.0 mS/cm) and a dissolved oxygen range of 0.0–199.9% (0.0–30.0 mg/L) cover everything from pure water checks to high-salinity industrial samples.