Handheld Dissolved Oxygen Meter - Discontinued


 | DOH-20D

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  • Microprocessor-Based for Fast and Accurate Readings
  • Large LCD Display Showing DO and Temperature Simultaneously
  • Simple To Calibrate
  • Automatic Temperature Compensation
  • Memory Storage and Recall with Data Hold Function
  • Low-Battery and Consumption Indicator
  • Auto Shut-Off After 10 Minutes of Non-Use


The DOH-20D model has been discontinued. Please see the DOH-SD1 as a possible alternative or contact our Flow Engineering Department.

The DOH-20D portable microprocessor-based dissolved oxygen meter is designed for convenience and easy operation. The DOH-20D is equipped with a custom LCD that can display dissolved oxygen (DO) in either mg/liter or % saturation and temperature. It can store up to 16 sets of temperature and DO values. An optional RS232 feature allows the user to download stored values to a computer. The exterior is padded with a rubber casing. Whether your application involves a fish tank, food processing, a lake’s oxygen level or BOD (biological oxygen demand), OMEGA has a dissolved oxygen meter to fit.

 DO O2 Temperature
Range 0 to 19.99 mg/L 0 to 40% -10 to 45°C (14 to 113°F)
Accuracy ±1.5% FS ±1.5% FS ±0.3°C (0.5°F)
Resolution 0.01 mg/L 0.1% 0.1°C (0.2°F)

Salinity Compensation: Manual, 0 to 50 ppt
Altitude (Pressure) Compensation: Manual, 555 to 808 mmHg
Temperature Compensation: Automatic 5 to 45°C (41 to 113°F)
Calibration: 20 to 9% in air or 0% in known solution
Power: 9 V battery (included)
Communications: RS232 (optional)
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