Ohaus DO Meter ST400D-B Part # 30378541

Low-Maintenance Dissolved Oxygen (DO) Meter with Optical Technology for Accurate Measurements

• The galvanic electrode can be used immediately after being powered on without the wait time typically associated with dissolved oxygen meters
• With a simple calibration process, quick delivery of measurements and automatic temperature compensation, Starter 300D is both easy-to-use and accurate.
• The automatic or manual endpoints allow the user to easily recall the last calibration data and stored information with one quick touch.

Product Specifications

Measurement Range	0.00 – 20.0 mg/L(ppm);  0 – 50 °C
Accuracy	±0.2 mg/L(<  8 mg/L) or ±0.3 mg/L(8~20 mg/L);  ±0.3 °C
Measurement Resolution	0.01 mg/L;  0.1 °C;  0.1%
Display	Color LCD Graphics
Electrode	STDO21 (Included)
Accuracy DO	0.2 ppm
Accuracy ± (Temperature)	0.3 °C
Battery Life	12 hours with Disposable Batteries
Calibration	2 Point
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 DO	0 ppm – 20 ppm
Measurement Range (Temperature)	0 °C – 50 °C
Net Weight	0.35 lb (0.16 kg)
Parameter	Dissolved Oxygen
Power	4 AAA (LR03) Batteries (Included)
Resolution (DO)	0.01
Temperature Compensation	Automatic
Temperature Resolution	0.1 °C
Temperature Sensor	10 KΩ NTC
Working Environment	41°F – 104°F, 80%RH, non-condensing (5°C – 40°C, 80%RH, non-condensing)

 

This product ships directly from Ohaus, ensuring fast delivery, proper handling, and factory-fresh quality. When you purchase Ohaus, you’re backed by one of the most trusted names in laboratory equipment — known worldwide for precision, reliability, and exceptional support. Shop with confidence knowing your order is fulfilled by the manufacturer themselves

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