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
Thermo Scientific™ Orion Star™ A123 Dissolved Oxygen Portable Meter
SureTRACE
Supports traceability with guaranteed access to certificates and proactive change notifications.
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SureTRACE
Supports traceability with guaranteed access to certificates and proactive change notifications.
Learn More
Supports traceability with guaranteed access to certificates and proactive change notifications.
Learn More
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 (% Saturation),Dissolved Oxygen (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 with Auto-Read Measure Mode, Manual 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 |
| 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 20.00 mg/L |
| Percent Saturation Range (Polarographic DO) | 0.0 to 200.0 % saturation |
2
Thermo Scientific™ Orion Star™ A323 Dissolved Oxygen Portable Meter
SureTRACE
Supports traceability with guaranteed access to certificates and proactive change notifications.
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SureTRACE
Supports traceability with guaranteed access to certificates and proactive change notifications.
Learn More
Supports traceability with guaranteed access to certificates and proactive change notifications.
Learn More
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 (% Saturation),Dissolved Oxygen (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 50.00 mg/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 90.00 mg/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 |
3
Thermo Scientific™ Orion Star™ A223 Dissolved Oxygen Portable Meter
SureTRACE
Supports traceability with guaranteed access to certificates and proactive change notifications.
Learn More
SureTRACE
Supports traceability with guaranteed access to certificates and proactive change notifications.
Learn More
Supports traceability with guaranteed access to certificates and proactive change notifications.
Learn More
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 (% Saturation),Dissolved Oxygen (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 with Auto-Read Measure Mode, Manual with Continuous Measure Mode |
| Battery Type | Four AA (included) |
| Relative Humidity Range | 5 to 85 %, non-condensing |
| Range (RDO) | 0.00 to 50.00 mg/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 90.00 mg/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 |
4
Thermo Scientific™ Orion™ Versa Star Pro™ DO Benchtop Meter
SureTRACE
Supports traceability with guaranteed access to certificates and proactive change notifications.
Learn More
SureTRACE
Supports traceability with guaranteed access to certificates and proactive change notifications.
Learn More
Supports traceability with guaranteed access to certificates and proactive change notifications.
Learn More
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 (% Saturation),Dissolved Oxygen (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 50.00 mg/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 90.00 mg/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 |
5
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 850 mmHg (manual entry) |
| Memory | Non-volatile memory preserves log and settings |
| Languages | English |
| Measurement Modes | Dissolved Oxygen (% Saturation),Dissolved Oxygen (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 with Auto-Read Measure Mode, Manual 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 20.00 mg/L |
| Percent Saturation Range (Polarographic DO) | 0.0 to 200.0 % saturation |
6
Thermo Scientific™ Orion Star™ A213 Dissolved Oxygen Benchtop Meter
SureTRACE
Supports traceability with guaranteed access to certificates and proactive change notifications.
Learn More
SureTRACE
Supports traceability with guaranteed access to certificates and proactive change notifications.
Learn More
Supports traceability with guaranteed access to certificates and proactive change notifications.
Learn More
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 850 mmHg |
| 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 (% Saturation),Dissolved Oxygen (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 50.00 mg/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 90.00 mg/L |
| Accuracy (Barometer) | ±6mmHg |
| Methods | 10 per channel with password protection |
| Pressure Resolution | 1 mmHg |
| 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 |