Benchtop Dissolved Oxygen Meter - Discontinued


 | DOB21

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2 anos de garantia CE
  • Scale Change in Auto-Range
  • Auto Calibration of All Parameters
  • Automatic Temperature Compensation
  • Salinity and Barometric Pressure Compensation
  • Data Logging up to 99 Points
  • BOD Capability
  • Zero and Span Auto Calibration
  • RS232 Output


The DOB21 model has been discontinued. Please see the DOH-SD1 as a possible alternative or contact our Flow Engineering department.

The DOB21 is a compact benchtop dissolved oxygen meter and a amperometric dissolved oxygen probe with automatic temperature compensation for field or laboratory applications. The unit measures dissolved oxygen in ppm or percent saturation and temperature in degrees Celsius. Programming is conveniently done via a three button keypad and stored in the non-volatile memory. The unit also includes an audible minimum and maximum alarm. The DOB21 kit is supplied with the dissolved oxygen probe, a cell maintenance kit, BOD kit and operator’s manual all in a hard carrying case.

Dissolved Oxygen
Measurement Range: 0 to 60 mgO2/L
Resolution Selection: 1/0.1/0.01
Relative Accuracy: 0.02% of full scale

Oxygen Gas
Measurement Range: 0 to 30% O2
Resolution Selection: 1/0.1
Relative Accuracy: 0.33% of full scale

Measurement Range: 0 to 600%
Resolution Selection: 1/0.1
Relative Accuracy: 0.1% of full scale

Automatic Temperature Compensation: 0 to 60°C (32 to 140°F)
Barometric Pressure Compensation Altitude: Up to 10,000 m (32,808')
Salinity Compensation: 0 to 40,000 ppm
Display: 16 characters x 2 lines
Power Supply: 9 Vdc battery (included)
Operation Time: Up to 60 hours
Dimensions: 170 H x 130 W x 135 mm D (6.7 x 5.1 x 5.3")
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