DO9100 Portable Dissolved Oxygen Meter with Temperature Compensation

Check whether water contains enough oxygen to support healthy aquatic conditions. This portable water quality analyzer measures dissolved oxygen in mg/L or percent saturation while displaying temperature. Its polarographic probe, temperature compensation, and air calibration support convenient field or bench testing. The pen-style meter travels easily between tanks, ponds, and sampling locations.

Key Features

• Reads oxygen in mg/L or saturation percentage
• 0.1 mg/L measurement resolution
• Automatic temperature compensation
• Hold, low-battery warning, and automatic shutoff

Why Choose Our DO9100 Meter

Unlike color test kits, this aquaculture DO tester provides direct digital readings without visual comparison. Its replaceable membrane and refillable electrode support repeated use with proper care.

Perfect For

Ideal for marine and freshwater aquariums, fish farms, ponds, hatcheries, laboratories, wastewater checks, and environmental sampling.

How to Use

Fill and assemble the electrode as instructed, allow it to polarize, then calibrate in air. Immerse the probe, maintain gentle water movement, and wait for a stable reading. Rinse after use and inspect the membrane regularly. Apply salinity or altitude corrections when needed.

Support Healthier Aquatic Conditions

Choose the DO9100 for clearer insight into oxygen levels across your water systems.