Ohaus® Starter 400D Portable DO Meters
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30378543 Ohaus® ST400D Portable DO Meter STDO21 electrode 0.01 mg/L; 0.1 ° C; 0.1% ± 0.2 mg/L(<8 mg/L) or ± 0.3 mg/L(8~20 mg/L); ± 0.3 ° C 0.00 to 20.0 mg/L(ppm); 0 to 50 ° C 1 Each
$1,343
$1,141.55
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30378542 Ohaus® ST400D-G Portable DO Meter STDO21 electrode, Carry case 0.01 mg/L; 0.1 ° C; 0.1% ± 0.2 mg/L(<8 mg/L) or ± 0.3 mg/L(8~20 mg/L); ± 0.3 ° C 0.00 to 20.0 mg/L(ppm); 0 to 50 ° C 1 Each
$1,348
$1,173
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30378541 Ohaus® ST400D-B Portable DO Meter - 0.01 mg/L; 0.1 ° C; 0.1% ± 0.2 mg/L(<8 mg/L) or ± 0.3 mg/L(8~20 mg/L); ± 0.3 ° C 0.00 to 20.0 mg/L(ppm); 0 to 50 ° C 1 Each
$567
$481.95
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Description

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. 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

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 Features

99 measurement memory, last calibration data recall, auto barometric pressure measurement, auto temperature compensation with manual salinity compensation

Specifications

Model ST400D ST400D-B ST400D-G
Part # 30378543 30378541 30378542
Measurement Range 0.00 - 20.0 mg/L(ppm);  0 - 50 °C 0.00 - 20.0 mg/L(ppm);  0 - 50 °C 0.00 - 20.0 mg/L(ppm);  0 - 50 °C
Accuracy ±0.2 mg/L( ±0.2 mg/L( ±0.2 mg/L(
Measurement Resolution 0.01 mg/L;  0.1 °C;  0.1% 0.01 mg/L;  0.1 °C;  0.1% 0.01 mg/L;  0.1 °C;  0.1%
Display Color LCD Graphics Color LCD Graphics Color LCD Graphics
Electrode STDO21 (Included) STDO21 (Availabe as product) STDO21 (Included)
Accuracy DO 0.2 ppm 0.2 ppm 0.2 ppm
Accuracy ± (Temperature) 0.3 °C 0.3 °C 0.3 °C
Battery Life 12 hours with Disposable Batteries 12 hours with Disposable Batteries 12 hours with Disposable Batteries
Calibration 2 Point 2 Point 2 Point
In-use cover No No No
Measurement Range DO 0 ppm - 20 ppm 0 ppm - 20 ppm 0 ppm - 20 ppm
Measurement Range (Temperature) 0 °C - 50 °C 0 °C - 50 °C 0 °C - 50 °C
Net Weight 0.35 lb (0.16 kg) 0.35 lb (0.16 kg) 0.35 lb (0.16 kg)
Parameter Dissolved Oxygen Dissolved Oxygen Dissolved Oxygen
Power 4 AAA (LR03) Batteries (Included) 4 AAA (LR03) Batteries (Included) 4 AAA (LR03) Batteries (Included)
Resolution (DO) 0.01 0.01 0.01
Temperature Compensation Automatic Automatic Automatic
Temperature resolution 0.1 °C 0.1 °C 0.1 °C
Temperature Sensor 10 KΩ NTC 10 KΩ NTC 10 KΩ NTC
Working Environment 41°F - 104°F, 80%RH, non-condensing (5°C - 40°C, 80%RH, non-condensing) 41°F - 104°F, 80%RH, non-condensing (5°C - 40°C, 80%RH, non-condensing) 41°F - 104°F, 80%RH, non-condensing (5°C - 40°C, 80%RH, non-condensing)

Documentation

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