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Ohaus Starter ST400D-G Portable Dissolved Oxygen Meter, 0.00 – 20.0 mg/L(ppm), 30208726

Ohaus Starter ST400D-G Portable Dissolved Oxygen Meter, 0.00 – 20.0 mg/L(ppm), 30208726
BrandStarter ST400D-G
Product CodeOHS-30208726
AvailabilityUsually ships in 5-7 business days
MSRP : $0.00
Out of Stock

Product Description

Ohaus Starter ST400D-G Portable Dissolved Oxygen Meter, 0.00 – 20.0 mg/L(ppm), 30208726

Ohaus Starter ST400D-G Portable Dissolved Oxygen Meter, 0.00 – 20.0 mg/L(ppm), 30208726. For over a century, OHAUS has perfected the art of measurement through our line of weighing products. Taking the same approach to our weighing equipment, OHAUS now delivers Starter ST400D - a practical, affordable, low-maintenance DO Portable Meter equipped with optical technology.

    • Applications; Field and lab Dissolved Oxygen measurement
    • Display; Backlit Color Liquid Crystal Display (LCD)
    • Operation; 4 AAA batteries (included)
    • Communication; NA
    • Construction; ABS Housing
    • Design; 99 measurement memory, last calibration data recall, auto barometric pressure measurement, auto temperature compensation with manual salinity compensation

    The ST400D is ideal for applications that require simple yet accurate DO measurements. Optical or Luminescent DO Probe allows for minimal maintenance and permits for immediate measurement reading without the need for warm up time or any sample preparation. Large bright backlit LCD screen provides easy to read results even low light areas with 5 dedicated manual keys the delivers simple straightforward operation for all operators via a simple calibration process and accurate measurements. With a meter stand, wrist strap for secure field use and IP54 housing, Starter 400D is durable and prepared for versatile use.

    Models Measurement Range Measurement Resolution Calibration Electrode
    ST400D 0.00 – 20.0 mg/L(ppm);0 – 50 °C 0.01 mg/L;0.1 °C;0.1% 2 Point STDO21 (Included)
    ST400D-B 0.00 – 20.0 mg/L(ppm);0 – 50 °C 0.01 mg/L;0.1 °C;0.1% 2 Point Not included
    ST400D-G 0.00 – 20.0 mg/L(ppm);0 – 50 °C 0.01 mg/L;0.1 °C;0.1% 2 Point STDO21 (Included)

    NOTE:We are an authorized distributor of Ohaus Corporation. We carry the entire product line of Ohaus Scales and Balances for different industries such Laboratory & Scientific Research, Retail industry, Medical Field, Jewelry and Pharmaceutical. We are located in Long Island New York. If you can not find any Ohaus products or replacement parts and accessories on our website, please contact us for pricing and availability. Our phone numbers are toll free 1-888-822 3336 or 631-803 2694. You can also send us an email to or simply click on the "Ask Question" button on every product detail page. We will reply your inquiries as quickly as possible...


  • Intuitive Software that Powers the Starter Series—Intuitive software and a well organized display work in tandem to make operating the Starter Series a simple and straightforward task.
  • Compact and Ergonomic Design Creates a User-Friendly Experience—Starter portable meters fit comfortably in the palm of your hand. Each meter also comes equipped with a retractable built-in stand that can be used to prop it up on a flat surface.
  • Reliable Calibration Results for Accurate Measurement—Starter portable meters track the accuracy of the calibration process right on the display, so that you can measure with peace-of-mind, knowing that your results will be highly precise.


Measurement Range 0.00 – 20.0 mg/L(ppm);0 – 50 °C
Measurement Resolution 0.01 mg/L;0.1 °C;0.1%
Calibration 2 Point
Temperature Compensation Automatic
Display Color LCD Graphics
Working Environment 41°F – 104°F, 80%RH, non-condensing (5°C – 40°C, 80%RH, non-condensing)
Net Weight 0.35 lb (0.16 kg)
Accuracy ±0.2 mg/L(<8 mg/L) or ±0.3 mg/L(8~20 mg/L);±0.3 °C
Battery Life 12 hours with Disposable Batteries
Electrode STDO21 (Included)
Parameter Dissolved Oxygen
Accuracy ± (Temperature) 0.3 °C
Accuracy DO 0.2 ppm
Dimensions (HxLxW) 1.38 in x 5.91 in x 3.54 in (35 mm x 150 mm x 90 mm)
In-use cover No
Measurement Range (Temperature) 0 °C – 50 °C
Measurement Range DO 0 ppm – 20 ppm
Power 4 AAA (LR03) Batteries (Included)
Resolution (DO) 0.01
Temperature resolution 0.1 °C
Temperature Sensor 10 KΩ NTC

Packaging Content

  • 400D Meter with IP54 Sets,
  • STDO21 Electrode
  • Electrode Clip,
  • Wrist Strap
  • 4 AAA Batteries

Warranty / Return Policy

Comes with 2 Years Manufacturer's Warranty

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