Starter Pen Meter Ohaus ST20D Dissolved Oxygen pen Meter

Starter Pen Meter Ohaus ST20D Dissolved Oxygen pen Meter

The Starter Pen Meter Ohaus ST20D Dissolved Oxygen pen Meter is a compact, precise, and durable instrument designed to measure dissolved oxygen levels quickly and accurately. Because it includes automatic temperature compensation (ATC) and a rugged waterproof design, this portable meter ensures reliable results for laboratory, environmental, and industrial applications. Moreover, its lightweight construction and simple operation make it ideal for both field and classroom use.

Features

• Accurate Dissolved Oxygen Measurement: Measures DO concentration from 0.0 to 19.9 mg/L, ideal for environmental and water quality testing.

• Automatic Temperature Compensation (ATC): Ensures precise readings by adjusting automatically for temperature changes during measurement.

• High Precision and Resolution: Provides a resolution of 0.1 mg/L and ±0.5°C temperature accuracy, ensuring consistent results.

• Single-Point Calibration: Allows easy calibration for quick setup and dependable performance.

• Clear LCD Display: Simultaneously shows dissolved oxygen and temperature readings for convenient data monitoring.

• Automatic Power-Off: Shuts down automatically after six minutes of inactivity to extend battery life.

• Compact and Lightweight: Weighs only 110 g for easy handling and portability during fieldwork.

• Waterproof and Durable: IP67-rated housing resists dust and water, making it reliable in harsh or outdoor conditions.

• Long Battery Operation: Operates up to 100 hours with four AG13 disposable batteries (included).

• Wrist Strap Included: Provides added security and convenience during on-site testing.

Specifications

• Meter Type: Dissolved Oxygen

• Measurement Range: 0.0 – 19.9 mg/L

• Accuracy (DO): ±0.5 °C equivalent

• Resolution: 0.1 mg/L

• Display: LCD

• ATC: Yes, automatic

• Calibration: 1-point

• Temperature Range: 0°C – 99°C

• Temperature Sensor: 50 kΩ NTC

• Automatic Shutdown: After 6 minutes of non-use

• Battery Life: 100 hours (4 × AG13 batteries included)

• Protection Rating: IP67 (waterproof and dustproof)

• Dimensions (L × H × W): 185 mm × 45 mm × 38 mm

• Net Weight: 110 g

• Working Environment: 5°C – 40°C, 80% RH (non-condensing)

• Wrist Strap: Included

Applications

The Ohaus ST20D Dissolved Oxygen Meter is ideal for aquaculture, wastewater treatment, environmental testing, and laboratory research. Additionally, it is used in field sampling, education, and water purification monitoring. As a result, users benefit from fast, accurate, and portable DO and temperature measurements for various professional and research needs.