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Ohaus DO Electrode STDO21 Optical Dissolved Oxygen (DO) probe, plastic shaft

Ohaus DO Electrode STDO21 Optical Dissolved Oxygen (DO) probe, plastic shaft

Ohaus (Authorized Dealer)

Free Shipping within the 48 contiguous united states

  • $750.00
  • Save $354

Model: 30378544

Brand new in its original packaging

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  • Authorized Dealer

    Trusted seller, fast shipping and easy returns.

  • Money Back Guarantee

    Get the item you purchased or get your money back.

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  • Warranty Period


  • Returns

    30 days returns. See details

OHAUS Precision Powers the Starter Electrodes

  • All sturdy and durable electrodes are constructed of either plastic or glass shafts and built to withstand daily use.
  • All electrodes include a temperature sensor, which powers automatic temperature compensation and ensures accurate measurements.
  • All electrodes fit perfectly in the electrode holders on OHAUS bench meters and electrode clips on all OHAUS portable meters.

Product Specifications

Measurement Range 0.00 - 20.0 mg/L(ppm)
Working Environment 10 degree C - 40 degree C, 85%RH, non-condensing
Working Environment 50 degree F - 104 degree F, 85%RH, non-condensing
Net Weight 105.0 g (3.7 oz)
Measurement Range DO (%) (ppm) 0 % - 20 ppm
Temperature Range 0 degree C - 60 degree C
Dimensions (Length) 125.0 mm (4.9 in)
Electrode Type DO
Shaft Material Plastic
Cable (Length) 1 m
Dimensions (?Diameter) 16.0 mm (0.63 in)
Temperature Sensor No

Shipping Policy


All orders are shipped within 48 hours Monday - Friday 8am - 5pm.


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Our policy lasts 30 days of delivery has been delivered. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund if the item is damaged.

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