Starter 400D DO Portable
High-Performance, Low-Maintenance Dissolved Oxygen (DO) Meter with Optical Technology for Accurate Measurements

ST400D

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%
Item Number: 30378543
Overview
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.
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
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)
Accessories

Item Number

30059257

Description

Zero Oxygen Chemicals, STARTER

Item Number

30253566

Description

DO Probe Cap, STDO21

Item Number

30031635

Description

Portable Bag STARTER