Ohaus ST300D Portable Dissolved Oxygen Meter

The Starter 300D provides accurate and reliable DO measurement, critical to aquatic life and water quality.  With a simple calibration process, quick delivery of measurements and automatic temperature compensation, the 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.  The galvanic electrode can be used immediately after being powered on without the wait time typically associated with dissolved oxygen meters.  The 30-measurement library stores data for future reference and allows the user to easily recall the last calibration data with one quick touch. 

Packages - Available in three configurations:  

Specifications:

• Measurement Range: 00 – 19.99; 20.0 – 45.0 mg/L; 200 – 400%; 0 – 50 °C
• Measurement Resolution: 1 mg/L; 1 mg/L; 0.1%; 1%; 0.1 °C; 0.1 ppm; 1 ppm
• Accuracy: ± 0.3 mg/L; ± 1%; ±0.3 °C
• Display: LCD
• Electrode: STDO11 (Not included in ST300D-B); STTEMP30 (Not included in ST300D-B)
• Accuracy DO: 1%
• Accuracy ± (Temperature) 3 °C
• Battery Life: 250 Hours with Disposable Batteries
• Calibration: 2-point
• Dimensions: 38 in x 6.69 in x 3.54 in (35 mm x 170 mm x 90 mm) (HxLxW)
• In-Use Cover: No
• Measurement Range DO: 0 % – 200 %; 200 % – 400 %; 0 ppm – 20 ppm; 20 ppm – 45 ppm
• Measurement Range (Temperature): 0 °C – 50 °C
• Net Weight: 35 lb (0.16 kg)
• Parameter: Dissolved Oxygen
• Power: 4 AAA (LR03) Batteries (Included)
• Resolution (DO): 01; 0.1
• Resolution Range (DO): 01-0.1
• Temperature Compensation: Automatic
• Temperature Resolution: 1 °C
• Temperature Sensor: 30 KΩ NTC
• Working Environment: 41°F – 104°F, 80%RH, non-condensing (5°C – 40°C, 80%RH, non-condensing)

ST300D Compatible Probes:

• Temperature Probe: STTEMP30
• Galvanic DO Probe: STD011

Starter Series Data Sheet
ST300D Manual