Ohaus Portable Meter ST300D-B; STDO11 Galvanic DO, STTEMP30, Portable 30219116

The Ohaus Portable Meter ST300D-B is a portable dissolved oxygen (DO) meter designed for accurate measurement of dissolved oxygen levels with temperature compensation, suitable for water quality assessment and related applications.

Key Features:

• Model: ST300D-B
• Part Number: 30219116
• Measurement Range DO: 0.00 to 19.99 mg/L; 20.0 to 45.0 mg/L; 0% to 200%; 200% to 400%
• Measurement Accuracy DO: ±1%
• Measurement Resolution DO: 0.01 mg/L (0-19.99 mg/L); 0.1 mg/L (20-45 mg/L); 0.1% to 1%
• Temperature Range: 0°C to 50°C
• Temperature Accuracy: ±0.3°C
• Automatic Temperature Compensation (ATC) and Manual Temperature Compensation (MTC)
• Calibration: 1 or 2-point calibration (100% and 0%)
• Included Probes: STDO11 Galvanic DO Probe, STTEMP30 Temperature Probe
• Memory Capacity: 30 measurements
• Power Supply: 4 AAA batteries with over 500 hours operating time
• Dimensions: 90 mm (W) x 150 mm (D) x 35 mm (H)
• Weight: Approximately 0.16 to 0.18 kg (without batteries)
• Display: Liquid Crystal Display (LCD)
• Electrode Features: Galvanic DO probe requires no priming or membranes
• Operating Environment: 5°C to 40°C, 80% relative humidity, non-condensing

Advantages:

• Wide DO measurement range allows precise readings in varied oxygen environments from freshwater to saturated solutions
• High accuracy (±1% DO and ±0.3°C) ensures reliable data for quality control and research
• Automatic and manual temperature compensation enhance measurement precision across temperature variations
• Galvanic DO probe design minimizes maintenance by eliminating the need for membrane replacement or priming
• Stored calibration and 30-measurement memory enable quick recall and better data management
• Compact lightweight design and low power consumption support portability and extended field use