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Home > pH Meters and Water Quality Products > Dissolved Oxygen, BOD, and COD > Dissolved Oxygen Meters > Dissolved Oxygen Handheld Meters > YSI Model 55 Dissolved Oxygen Meters

YSI Model 55 Dissolved Oxygen Meters

Rugged construction is perfect for field use!

Built-in calibration chamber
Splashproof IP65 housing

These DO meters are great for environment testing, waste water treatment, fish farming, research laboratories, or any application requiring DO spot testing. Each meter features a durable stainless steel probe that easily sinks into water. Probes come with a strain relief spring to protect cable against flexing and tugging.
Built-in calibration chamber makes field calibration quick and easy. Chamber houses a small sponge that can be moistened to provide a 100% water-saturated air environment for calibrating, transporting, and storing probe. To calibrate, simply wet sponge, insert the probe, and enter altitude and salinity values.
Meters simultaneously measure and display both oxygen (in mg/L or % air saturation) and temperature (in °C). Automatic temperature compensation ensures accuracy. All results are displayed on a large, backlit LCD display.
What's included: 30 membranes, one bottle of KCl solution, six AA batteries, a carrying strap, and an instruction manual.
_{Note: Two-year warranty applies to the instrument; one-year warranty on the DO sensor module.}