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Ohaus® Starter Dissolved Oxygen Electrodes

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Ohaus® Starter Dissolved Oxygen Electrodes

To complement the Ohaus® Starter Series, a full offering of electrodes is provided that will accurately test for a variety of measurement types that include pH, Conductivity (EC), Total Dissolved Solids (TDS), Dissolved Oxygen (DO), Oxidation Reduction Potential (ORP) and Salinity.

The STDO11 is a galvanic DO electrode with a plastic shaft that produces its own electric current. The cathode is silver and the anode is zinc. Oxygen passes through the membrane and is reduced at the cathode to increase the electrical signal (current) read by the electrode. As oxygen increases, the signal increases. Galvanic sensors are active at all times and will degrade in storage as well as during use. They do not need to polarize (warm up) before calibration or measurement while polarographic electrodes take 15 minutes to several hours to warm up.

The STDO21 electrode includes a temperature sensor.

Measurement Range 0 – 200%
Working Environment 50°F – 104°F, 85%RH, non-condensing (10°C – 40°C, 85%RH, non-condensing)
Net Weight 2.5 oz.
Cable 1.1m
Dimensions 4.7 x 0.47"
Electrode Type DO
Shaft Material Plastic
Temperature Range 0 – 50°C

Cat.No. Name EA    
316-30031639 STDO11 Dissolved Oxygen Electrode $372.00
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316-30219117 STDO21 Dissolved Oxygen Electrode with Temperature Sensor $0.00
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