Dissolved Oxygen Meters

Dissolved Oxygen Meters

Benchtop or portable instruments, probes, and sensors used to measure dissolved oxygen in water and other solutions; typically used to determine oxygen saturation or biological oxygen demand (BOD), a measure of biodegradable material in the sample.
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1 – 26 of 26 results
1

Fisherbrand™ Traceable™ Portable Dissolved Oxygen Meter

Traceable to NIST™ standards.

EDGE
2

Thermo Scientific™ Orion Star™ A123 Dissolved Oxygen Portable Meter

Take simple dissolved oxygen and temperature measurements with this portable meter with easy operation for basic field testing.

Temperature (Metric) Range 0.0°C to 50.0°C
Resolution (Polarographic DO) 0.01, 0.1mg/L
Pressure Range 450 to 850mmHg (manual entry)
Memory Non-volatile memory preserves log and settings
Languages English
Measurement Modes Dissolved oxygen as % saturation or mg/L with temperature
Channels 1
Power Supply 4 AA batteries (included) or universal AC adapter (sold separately)
Barometric Pressure Correction 450 to 850mmHg, automatic with manual entry
Battery Life 2000 hours
Data Management Details Internal data point memory
Display Type LCD
Data Points 50
Calibration Modes Water-saturated air, manual (Winkler titration)
Percent Saturation Relative Accuracy (Polarographic DO) ±2 % saturation or ±2% of reading whichever is greater
Certifications/Compliance CE, TUV 3-1, FCC Class A
Temperature Probe Calibration 1 point temperature offset calibration
Inputs 9 pin MiniDIN (polarographic DO sensor with built-in temperature)
Accuracy (Temperature) ±0.1°C
Weight (Metric) 0.5 kg
Salinity Factor 0 to 45 ppt, automatic correction using manual entry of sample salinity
Stability Smart Stability and Smart Averaging
Warranty 3 Year Meter Warranty
Temperature (English) Operating 41°F to 113°F (ambient)
Accuracy (Polarographic DO) ±0.2mg/L or ±2% of reading, whichever is greater
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
Sensor Types Polarographic dissolved oxygen sensor
Percent Saturation Range Polarographic DO 0.0 to 200.0 % saturation
Log Function Type Automatic data logging with Auto-Read measure mode; manual data logging with Continuous measure mode
Battery Type Four AA (included)
Relative Humidity Range 5 to 85 %, non-condensing
Dimensions (L x W x H) 24 cm x 10 cm x 6.5 cm (9.5 in. x 3.9 in. x 2.6 in.)
IP Rating IP-67
Temperature Selection Automatic with ATC temperature probe
Percent Saturation Resolution (Polarographic DO) 0.1, 1 % saturation
Keypad Simple with highlighted measure key, scroll and shortcut keys
Model Orion Star A123 Dissolved Oxygen/Temperature Portable Meter
Outputs None
Weight (English) 2 lb.
Resolution (Temperature) 0.1°C (0.1°F)
Temperature (Metric) Operating 5°C to 45°C (ambient)
Range (Polarographic DO) 0.00 to 20.00mg/L
Percent Saturation Range (Polarographic DO) 0.0 to 200.0 % saturation
3

Thermo Scientific™ Orion Star™ A213 Dissolved Oxygen Benchtop Meter

Reliably measure dissolved oxygen (RDO optical/polarographic) and temperature with this benchtop meter for advanced lab analysis.

Temperature (Metric) Range 0.0°C to 50.0°C
Resolution (Polarographic DO) 0.01, 0.1mg/L
Pressure Range 400 to 850mmHg
Memory Non-volatile memory preserves data log, calibration log and meter settings
Languages English, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update
Measurement Modes Dissolved oxygen as % saturation or mg/L with temperature and barometric pressure
Power Supply Universal AC adapter (included) or 4 AA batteries (sold separately)
Barometric Pressure Correction 400 to 850mmHg, automatic using built-in barometer or manual entry
Battery Life 800 hours
Data Management Details Transfer single, range or all data points to printer or computer
Display Type Graphic LCD with Backlight
Data Points 2000 with date and time stamp
Calibration Modes Water-saturated air, air-saturated water, manual (Winkler titration), zero point
Certifications/Compliance CE, TUV 3-1, FCC Class A
Temperature Probe Calibration 1 point temperature offset calibration
Salinity Factor 0.0 to 45.0 ppt, automatic correction using manual entry of sample salinity
Stability Selectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting
Warranty 3 Year Meter Warranty
Sensor Types RDO optical dissolved oxygen sensor or polarographic dissolved oxygen sensor
Percent Saturation Range Polarographic DO 0.0 to 600.0 % saturation
Log Function Type Automatic data logging with Auto-Read and Timed measure modes; manual data logging with Continuous m
Battery Type Four AA (sold separately)
Relative Humidity Range 5 to 85 %, non-condensing
Range (RDO) 0.00 to 50.00mg/L
Dimensions (L x W x H) 24 cm x 18 cm x 11 cm (9.5 in. x 7.1 in. x 4.3 in.)
Percent Saturation Range (RDO) 0.0 to 500.0 % saturation
Temperature Selection Automatic with ATC temperature probe
Keypad Comprehensive with menu-specific function keys and dual purpose scroll/shortcut keys
Outputs USB, RS232
Backlight Option Yes, selectable
Percent Saturation Relative Accuracy (RDO) ±2 % saturation ≤ 200 % saturation, ±10 % saturation > 200 % saturation
Range (Polarographic DO) 0.00 to 90.00mg/L
Accuracy (Barometer) ±6mmHg
Methods 10 per channel with password protection
Pressure Resolution 1mmHg
Channels 1
Resolution (RDO) 0.01, 0.1mg/L
Percent Saturation Resolution (RDO) 0.1, 1 % saturation
Percent Saturation Relative Accuracy (Polarographic DO) ±2 % saturation or ±2% of reading whichever is greater
Inputs 9 pin MiniDIN (RDO optical or polarographic DO sensor with built-in temperature), stirrer input (stirrer probe)
Accuracy (Temperature) ±0.1°C
Weight (Metric) 0.9 kg
Temperature (English) Operating 41°F to 113°F (ambient)
Accuracy (Polarographic DO) ±0.2mg/L or ±2% of reading, whichever is greater
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. 1010003)
Alarm Output High/low limit alarm, calibration due alarm
IP Rating IP-54
Percent Saturation Resolution (Polarographic DO) 0.1, 1 % saturation
Model Orion Star A213 RDO Optical/Dissolved Oxygen/Temperature Benchtop Meter
Weight (English) 2 lb.
Resolution (Temperature) 0.1°C (0.1°F)
Temperature (Metric) Operating 5°C to 45°C (ambient)
Percent Saturation Range (Polarographic DO) 0.0 to 600.0 % saturation
Accuracy (RDO) ±0.1mg/L up to 8mg/L, ±0.2mg/L from 8 to 20mg/L, ±10% of reading up to 50mg/L
4

Thermo Scientific™ Orion Star™ A323 Dissolved Oxygen Portable Meter

Accurately monitor dissolved oxygen (optical/polarographic) and temperature with this RDO/DO portable meter for challenging field testing.

Temperature (Metric) Range 0.0°C to 50.0°C
Resolution (Polarographic DO) 0.01, 0.1mg/L
Pressure Range 400 to 850mmHg
Memory Non-volatile memory preserves data log, calibration log and meter settings
Languages English, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update
Measurement Modes Dissolved oxygen as % saturation or mg/L with temperature and barometric pressure
Power Supply 4 AA batteries (included) or universal AC adapter (sold separately)
Barometric Pressure Correction 400 to 850mmHg, automatic using built-in barometer or manual entry
Battery Life 800 hours
Data Management Details Transfer single, range or all data points to printer or computer
Display Type Graphic LCD with Backlight
Data Points 5000 with date and time stamp
Calibration Modes Water-saturated air, air-saturated water, manual (Winkler titration), zero point
Certifications/Compliance CE, TUV 3-1, FCC Class A
Temperature Probe Calibration 1 point temperature offset calibration
Salinity Factor 0.0 to 45.0 ppt, automatic correction using manual entry of sample salinity
Stability Selectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting
Warranty 3 Year Meter Warranty
Sensor Types RDO optical dissolved oxygen sensor or polarographic dissolved oxygen sensor
Percent Saturation Range Polarographic DO 0.0 to 600.0 % saturation
Log Function Type Automatic data logging with Auto-Read and Timed measure modes; manual data logging with Continuous m
Battery Type Four AA (included)
Relative Humidity Range 5 to 85 %, non-condensing
Range (RDO) 0.00 to 50.00mg/L
Dimensions (L x W x H) 24 cm x 10 cm x 6.5 cm (9.5 in. x 3.9 in. x 2.6 in.)
Percent Saturation Range (RDO) 0.0 to 500.0 % saturation
Temperature Selection Automatic with ATC temperature probe
Keypad Comprehensive with menu-specific function keys and dual purpose scroll/shortcut keys
Outputs USB, RS232
Backlight Option Yes, selectable
Percent Saturation Relative Accuracy (RDO) ±2 % saturation ≤ 200 % saturation, ±10 % saturation > 200 % saturation
Range (Polarographic DO) 0.00 to 90.00mg/L
Accuracy (Barometer) ±6mmHg
Methods 10 per channel with password protection
Pressure Resolution 1mmHg
Channels 1
Resolution (RDO) 0.01, 0.1mg/L
Percent Saturation Resolution (RDO) 0.1, 1 % saturation
Percent Saturation Relative Accuracy (Polarographic DO) ±2 % saturation or ±2% of reading whichever is greater
Inputs 9 pin MiniDIN (RDO optical or polarographic DO sensor with built-in temperature)
Accuracy (Temperature) ±0.1°C
Weight (Metric) 0.5 kg
Temperature (English) Operating 41°F to 113°F (ambient)
Accuracy (Polarographic DO) ±0.2mg/L or ±2% of reading, whichever is greater
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
Alarm Output High/low limit alarm, calibration due alarm
IP Rating IP-67
Percent Saturation Resolution (Polarographic DO) 0.1, 1 % saturation
Model Orion Star A323 RDO Optical/Dissolved Oxygen/Temperature Portable Meter
Weight (English) 1.2 lb.
Resolution (Temperature) 0.1°C (0.1°F)
Temperature (Metric) Operating 5°C to 45°C (ambient)
Percent Saturation Range (Polarographic DO) 0.0 to 600.0 % saturation
Accuracy (RDO) ±0.1mg/L up to 8mg/L, ±0.2mg/L from 8 to 20mg/L, ±10% of reading up to 50mg/L
5

Thermo Scientific™ Orion Star™ A223 Dissolved Oxygen Portable Meter

Reliably measure dissolved oxygen (optical/polarographic) and temperature with this RDO/DO portable meter for advanced field analysis.

Temperature (Metric) Range 0.0°C to 50.0°C
Resolution (Polarographic DO) 0.01, 0.1mg/L
Pressure Range 400 to 850mmHg
Memory Non-volatile memory preserves data log, calibration log and meter settings
Languages English, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update
Measurement Modes Dissolved oxygen as % saturation or mg/L with temperature and barometric pressure
Power Supply 4 AA batteries (included) or universal AC adapter (sold separately)
Barometric Pressure Correction 400 to 850mmHg, automatic using built-in barometer or manual entry
Battery Life 800 hours
Data Management Details Transfer single, range or all data points to printer or computer
Display Type Graphic LCD with Backlight
Data Points 1000 with date and time stamp
Calibration Modes Water-saturated air, air-saturated water, manual (Winkler titration), zero point
Certifications/Compliance CE, TUV 3-1, FCC Class A
Temperature Probe Calibration 1 point temperature offset calibration
Salinity Factor 0.0 to 45.0 ppt, automatic correction using manual entry of sample salinity
Stability Smart Stability and Smart Averaging
Warranty 3 Year Meter Warranty
Sensor Types RDO optical dissolved oxygen sensor or polarographic dissolved oxygen sensor
Percent Saturation Range Polarographic DO 0.0 to 600.0 % saturation
Log Function Type Automatic data logging with Auto-Read measure mode; manual data logging with Continuous measure mode
Battery Type Four AA (included)
Relative Humidity Range 5 to 85 %, non-condensing
Range (RDO) 0.00 to 50.00mg/L
Dimensions (L x W x H) 24 cm x 10 cm x 6.5 cm (9.5 in. x 3.9 in. x 2.6 in.)
Percent Saturation Range (RDO) 0.0 to 500.0 % saturation
Temperature Selection Automatic with ATC temperature probe
Keypad Comprehensive with menu-specific function keys and dual purpose scroll/shortcut keys
Outputs USB, RS232
Backlight Option Yes, selectable
Percent Saturation Relative Accuracy (RDO) ±2 % saturation ≤ 200 % saturation, ±10 % saturation > 200 % saturation
Range (Polarographic DO) 0.00 to 90.00mg/L
Accuracy (Barometer) ±6mmHg
Methods 10 per channel with password protection
Pressure Resolution 1mmHg
Channels 1
Resolution (RDO) 0.01, 0.1mg/L
Percent Saturation Resolution (RDO) 0.1, 1 % saturation
Percent Saturation Relative Accuracy (Polarographic DO) ±2 % saturation or ±2% of reading whichever is greater
Inputs 9 pin MiniDIN (RDO optical or polarographic DO sensor with built-in temperature)
Accuracy (Temperature) ±0.1°C
Weight (Metric) 0.5 kg
Temperature (English) Operating 41°F to 113°F (ambient)
Accuracy (Polarographic DO) ±0.2mg/L or ±2% of reading, whichever is greater
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
Alarm Output Calibration due alarm (fixed 12 hour)
IP Rating IP-67
Percent Saturation Resolution (Polarographic DO) 0.1, 1 % saturation
Model Orion Star A223 RDO Optical/Dissolved Oxygen/Temperature Portable Meter
Weight (English) 1.2 lb.
Resolution (Temperature) 0.1°C (0.1°F)
Temperature (Metric) Operating 5°C to 45°C (ambient)
Percent Saturation Range (Polarographic DO) 0.0 to 600.0 % saturation
Accuracy (RDO) ±0.1mg/L up to 8mg/L, ±0.2mg/L from 8 to 20mg/L, ±10% of reading up to 50mg/L
6

Thermo Scientific™ Orion™ Versa Star Pro™ DO Benchtop Meter

Get premium performance and flexibility with this benchtop meter with module for dissolved oxygen (optical/polarographic) and temperature.

Power Rating DC input: 9VDC, 1A
Temperature (Metric) Range -5.0°C to +105.0°C
Resolution (Polarographic DO) 0.01, 0.1mg/L
Pressure Range 400 to 850mmHg
Memory Non-volatile memory preserves data log, calibration log and meter settings
Languages English, Spanish, French, Italian, German, Chinese, Portuguese and Korean
Measurement Modes Dissolved oxygen as % saturation or mg/L with temperature and barometric pressure
Power Supply Universal AC adapter (included)
Barometric Pressure Correction 400 to 850mmHg, automatic using built-in barometer or manual entry
Data Management Details Transfer single, range or all data points to printer or computer
Display Type Color graphic LCD with user-customizable options
Data Points 2000 with date and time stamp
Calibration Modes Water-saturated air, air-saturated water, manual (Winkler titration), zero point
Certifications/Compliance CE, TUV 3-1, FCC Class A
Temperature Probe Calibration 1 point temperature offset calibration
Salinity Factor 0.0 to 45.0 ppt, automatic correction using manual entry of sample salinity
Stability Selectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting
Warranty 3 year meter and module warranty
Sensor Types RDO optical dissolved oxygen sensor or polarographic dissolved oxygen sensor
Percent Saturation Range Polarographic DO 0.0 to 600.0 % saturation
Log Function Type Automatic data logging with Auto-Read, Timed and Single Shot measure modes; manual data logging with
Relative Humidity Range 5 to 85 %, non-condensing
Range (RDO) 0.00 to 50.00mg/L
Dimensions (L x W x H) 28 cm x 24 cm x 10 cm (11 in. x 9.5 in. x 3.9 in.), modules add ≤ 2 cm (0.8 in.) L & H
Percent Saturation Range (RDO) 0.0 to 500.0 % saturation
Temperature Selection Automatic with ATC temperature probe
Keypad Numeric with menu-specific function keys and dual purpose scroll/shortcut keys
Outputs USB (2), RS232
Backlight Option Yes
Percent Saturation Relative Accuracy (RDO) ±2 % saturation ≤ 200 % saturation, ±10 % saturation > 200 % saturation
Range (Polarographic DO) 0.00 to 90.00mg/L
Accuracy (Barometer) ±6mmHg
Methods 10 per channel
Pressure Resolution 0.1mmHg
Channels 4 - customizable with modules
Resolution (RDO) 0.01, 0.1mg/L
Percent Saturation Resolution (RDO) 0.1, 1 % saturation
Percent Saturation Relative Accuracy (Polarographic DO) ±2 % saturation or ±2% of reading whichever is greater
Inputs 9 pin MiniDIN (RDO optical or polarographic DO sensor with built-in temperature), two stirrer inputs (stirrer probe)
Accuracy (Temperature) ±0.1°C
Weight (Metric) 1.2 kg, modules add 0.2 kg each
Temperature (English) Operating 41°F to 113°F (ambient)
Accuracy (Polarographic DO) ±0.2mg/L or ±2% of reading, whichever is greater
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. STARA-PWR)
Alarm Output Set point alarm, high/low limit alarm, calibration due alarm
IP Rating IP-54
Percent Saturation Resolution (Polarographic DO) 0.1, 1 % saturation
Weight (English) 2.5 lb., modules add 0.5 lb. each
Resolution (Temperature) 0.1°C (0.1°F)
Temperature (Metric) Operating 5°C to 45°C (ambient)
Percent Saturation Range (Polarographic DO) 0.0 to 600.0 % saturation
Accuracy (RDO) ±0.1mg/L up to 8mg/L, ±0.2mg/L from 8 to 20mg/L, ±10% of reading up to 50mg/L
7

Thermo Scientific™ Orion Lab Star DO Dissolved Oxygen Bench Meters

Orion Lab Star DO113 dissolved oxygen bench meters measure DO as % saturation or concentration with temperature, feature large backlit display for easy viewability, and offer small footprint to save bench space. This DO meter is ideal for simplified, budget-friendly lab testing and data recording.

Temperature (Metric) Range -5.0°C to +105.0°C
Resolution (Polarographic DO) 0.1, 1 % saturation; 0.01, 0.1 mg/L or ppm
Pressure Range 400.0 to 850.0 mmHg; 0.533 to 1.133 bar
Memory Non-volatile
Measurement Modes Dissolved oxygen as percent saturation with temperature; dissolved oxygen as concentration in mg/L with temperature; dissolved oxygen as concentration in ppm with temperature
Data Management Details Continuous, Auto-Read and Timed read modes
Display Type 5 in. backlit LCD
Data Points 500 data sets with time and date
Calibration Modes 100 % saturation, 0 % saturation, custom concentration value
Certifications/Compliance CE, TUV 3-1, FCC Class A
Temperature Probe Calibration 1 point temperature offset calibration
Accuracy (Temperature) ±0.3°C, ±0.5°F
Weight (Metric) 700 grams
Warranty 3 year meter warranty
AC Adapter Universal 100-240 V 50/60 Hz power supply with twist-and-lock meter connection and interchangeable wall plugs for US/Japan, Euro, UK/Singapore, Australia/New Zealand and China outlets
Sensor Types Polarographic
Percent Saturation Range Polarographic DO 0.0 to 300.0 % saturation
Log Function Type Automatic with Auto-Read and Timed read modes, manual with Continuous read mode
Relative Humidity Range 5 to 85%, non-condensing
Alarm Output Calibration reminder alarm
Dimensions (L x W x H) 187.2 x 155.2 x 61.7 mm, 7.37 x 6.11 x 2.43 in.
IP Rating IP54
Temperature Selection Manual or automatic with ATC temperature probe
Outputs Computer or printer (STARA-106)
Backlight Option Yes
Weight (English) 1.54 lb.
Resolution (Temperature) 0.1°C, 0.1°F
Range (Polarographic DO) 0.0 to 300.0 % saturation; 0.00 to 30.0 mg/L or ppm
8

Mettler Toledo™ FiveGo™ F4 DO Meters

Portable meter provides reliable and high quality dissolved oxygen (DO) measurements with simple click of a button

Promotions are available
Memory 200 measurements
Model DO PORTABLE F4
Languages Chinese, Chinese (TW), Croatian, Czech, Danish, Dutch, English (GB), English (US), French, German, Hungarian, Indonesian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese (BR), Russian, Slovak, Slovenian, Spanish, Swedish, Thai, Turkish, Vietnamese
Channels Single-channel
9

YSI™ ProODO Optical DO Cable

For use with ProODO, ProDSS, and 5500D instruments.

10

YSI™ EcoSense ODO200 Optical DO/Temperature Kit

Accurate, economical, handheld dissolved oxygen measurements using optical technology.

Type Optical DO/Temperature Kit
11

YSI™ Pro20 Field Kits

Height (Metric) 2.3 cm
Accuracy (DO) 0 to 20mg/L, ±2% of the reading, 20 to 50mg/L, ±6% of the reading
Warranty 3 years instrument, 2 years cable, 1 year polarographic sensor, 6 months galvanic sensors
Temperature (Metric) Range -5°C to +55°C
Width (English) 3.25 in.
Battery Type 2 alkaline C-cells
Battery Life 400 hr.
Temperature Compensation 0°C to 45°C
Temperature (English) Range 23°F to 131°F
Weight (English) 1.05 lb.
Certifications/Compliance RoHS, CE, WEEE, IP-67 waterproof, 1-meter drop test
Accuracy (Barometer) ±5mmHg (5°C)
Accuracy (Temperature) ±0.3°C
Height (English) 2.25 in.
Weight (Metric) 47.5 kg
12

YSI™ Pro2030 Field Dissolved Oxygen/Conductivity Meter

Measure DO, salinity, conductivity, specific conductance, TDS, barometric pressure and temperature

13

YSI™ Pro20 BOD Lab Kit

Pro20 BOD Lab Kit includes everything from lab to field (or both) along with a probe. Pro20 DO Meter is a tough, smart, versatile and portable dissolved oxygen meter for the lab or field!

14

Fisherbrand™ Traceable™ Dissolved Oxygen Meter Pen
SCI_ED

O-ring seal and membrane keypad for long life in severe lab or harsh plant environments.

15

Ohiolumex Co Inc Optical Oxygen Meter
SDP

Optical Oxygen Meter

ENCOMPASS
16

Cole-Parmer YSI 559 Replacement Dissolved Oxygen (DO) Sensor Module

This is a 559 replacement DO sensor module.

ENCOMPASS
17

FLIR Systems Dissolved Oxygen ExStik™
SCI_ED

ENCOMPASS
18

Fisherbrand™ accumet™ Research AR40 Benchtop Dissolved Oxygen Meter Kit

Easy-to-use dissolved oxygen meter provides accuracy, reliability and intuitive operation.

19

Fisherbrand™ Traceable™ Portable Dissolved Oxygen Meter Pens

Compact, rugged design with large, easy-to-read digits. Fisherbrand Traceable Portable Dissolved Oxygen Meter Pen has a water-resistant design with O-ring seal and membrane keypad which assures a long life in severe lab or harsh plant environments.

20

Mettler Toledo™ Portable Dissolved Oxygen Meters

21

Thermo Scientific™ Orion™ 3-Star Plus Dissolved Oxygen Portable Meter

Waterproof, battery-operated meter stands up to the most demanding field applications

22

Thermo Scientific™ Orion Star™ A113 Dissolved Oxygen Benchtop Meter

Take simple, accurate dissolved oxygen and temperature measurements with this benchtop meter with easy operation for basic lab testing.

Temperature (Metric) Range 0.0°C to 50.0°C
Resolution (Polarographic DO) 0.01, 0.1mg/L
Pressure Range 450 to 850mmHg (manual entry)
Memory Non-volatile memory preserves log and settings
Languages English
Measurement Modes Dissolved oxygen as % saturation or mg/L with temperature
Channels 1
Power Supply Universal AC adapter (included) or 4 AA batteries (sold separately)
Barometric Pressure Correction 450 to 850mmHg, automatic with manual entry
Battery Life 2000 hours
Data Management Details Internal data point memory
Display Type LCD
Data Points 50
Calibration Modes Water-saturated air, manual (Winkler titration)
Percent Saturation Relative Accuracy (Polarographic DO) ±2 % saturation or ±2% of reading whichever is greater
Certifications/Compliance CE, TUV 3-1, FCC Class A
Temperature Probe Calibration 1 point temperature offset calibration
Inputs 9 pin MiniDIN (polarographic DO sensor with built-in temperature)
Accuracy (Temperature) ±0.1°C
Weight (Metric) 0.9 kg
Salinity Factor 0 to 45 ppt, automatic correction using manual entry of sample salinity
Stability Smart Stability and Smart Averaging
Warranty 3 Year Meter Warranty
Temperature (English) Operating 41°F to 113°F (ambient)
Accuracy (Polarographic DO) ±0.2mg/L or ±2% of reading, whichever is greater
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. 1010003)
Sensor Types Polarographic dissolved oxygen sensor
Percent Saturation Range Polarographic DO 0.0 to 200.0 % saturation
Log Function Type Automatic data logging with Auto-Read measure mode; manual data logging with Continuous measure mode
Battery Type Four AA (sold separately)
Relative Humidity Range 5 to 85 %, non-condensing
Dimensions (L x W x H) 24 cm x 18 cm x 11 cm (9.5 in. x 7.1 in. x 4.3 in.)
IP Rating IP-54
Temperature Selection Automatic with ATC temperature probe
Percent Saturation Resolution (Polarographic DO) 0.1, 1 % saturation
Keypad Simple with highlighted measure key, scroll and shortcut keys
Model Orion Star A113 Dissolved Oxygen/Temperature Benchtop Meter
Outputs None
Weight (English) 2 lb.
Resolution (Temperature) 0.1°C (0.1°F)
Temperature (Metric) Operating 5°C to 45°C (ambient)
Range (Polarographic DO) 0.00 to 20.00mg/L
Percent Saturation Range (Polarographic DO) 0.0 to 200.0 % saturation
23

Oakton™ DO Six+ Portable Dissolved Oxygen Meters

High accuracy combined with economical pricing.

Accuracy (DO) ±1.5% FS
Warranty 3 Years
Temperature (Metric) Range 0°C to 50°C
Saturation Range 0 to 200%
Battery Type AA
Range (Salinity) 0 to 50ppt
Display Type LCD
Temperature (English) Range 32°F to 122°F
Operating Limits Ambient Temperature Range 0°C to 50°C
Resolution (DO) 0.01mg/L
Certifications/Compliance CE
Resolution (Temperature) 0.1°C
Saturation Resolution 0.1%
Accuracy (Temperature) ±0.5 °C
Range (DO) 0 to 20mg/L
24

Oakton™ Waterproof DO 450 Portable Dissolved Oxygen Meter

Affordable optical RDO technology reduces maintenance time and costs.

Accuracy (DO) ±2%
Battery Life 500 hours
Warranty 3 Years
Dimensions (L x W x H) 20 x 8 x 5.7 cm (7.9 x 3.12 x 2.25 in.)
Temperature (Metric) Range -10° to +110°C
Display Type Backlit LCD
IP Rating IP67
Data Points 500 sets
Certifications/Compliance CE marked, TUV 3-1, FCC Class A
Resolution (Temperature) 0.1
Battery Type Two AA batteries
Accuracy (Temperature) ±0.5°C (±0.9°F)
25

YSI™ Benchtop Models 5100 Dissolved Oxygen Meters

Full-featured, microprocessor-controlled meters for state-of-the-art performance.

26

YSI™ Model 550A Dissolved Oxygen Meter

Rugged DO Meter designed for the field

Accuracy (DO) 0 to 20mg/L, ±0.3mg/L or 2% of reading, whichever is greater, 20 to 50mg/L, ±6% of reading
Warranty 3 Years
Width (English) 4.75 in.
Length (Metric) 23 cm
Length (English) 9 in.
Saturation Range 0 to 500% Air Saturation
Sensor Types Thermistor
For Use With (Application) DO, Temperature
Width (Metric) 12 cm
Battery Type C Alkaline
Includes Meter, DO/temperature probe, 4 C Batteries, Cable
Battery Life 2000 hr.
IP Rating IP-67
Temperature (English) Range 23°F to 113°F
Resolution (DO) 0.01, 0.1mg/L
Weight (English) 2 lb.
Certifications/Compliance CE, IP67
Resolution (Temperature) 0.1°C
Saturation Resolution 0.1% Air Saturation
Accuracy (Temperature) ±0.3°C
Dimensions (L x W) 9 x 4.75 in. (23 x 12 cm)
Range (DO) 0 to 50mg/L
Height (English) 2.5 in.
Weight (Metric) 0.91 kg