Benchtop Dissolved Oxygen Meter

DOB21

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^$ 1,008.00 DOB21

•	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
View related products - Dissolved Oxygen Measurement Instrumentation

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.

SPECIFICATIONS
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

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

General
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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To Order (Specify Model Number)

Part Number	Availability	Price	Description	Qty.
DOB21		$1,008.00	Benchtop dissolved oxygen kit	qty.


Accessories

DOE-21L		$180.00	Replacement D.O. cell	qty.

DOM21L		$68.00	Replacement cell maintenance kit for DOE-21L	qty.

DOM-ADP		$72.00	Replacement BOD kit	qty.

DOE-21S	12 Weeks	$1,620.00	Optional immersion polarographic cell with 20 m (66') cable	qty.

DOM-441		$68.00	Replacement cell maintenance kit for DOE-21S	qty.

DOA-21RS		$25.00	Sensor refill solution 50 ml (0.05 qt)	qty.

CDH-30PW		$65.00	Optional AC power adaptor	qty.

PHA-EH		$69.00	Benchtop sensor holder	qty.

† All dollar amounts on this site are shown in US currency.

Note: Comes complete with 1 dissolved oxygen probe, 1 cell maintenance kit, BOD kit, hard carrying case, 9 V battery, electrolyte solution, and operator’s manual.
Ordering Example: (1) DOB21 Dissolved oxygen kit, $1008, plus (1) DOA-21RS sensor refill solution (50 mL), $25, plus (1) CDH-30PW AC power adaptor, $65, $1008 + 25 + 65 = $1,098.00

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