DO-vials-beakers-230x195

Thermo Scientific Orion dissolved oxygen benchtop and portable meters help you meet regulatory standards, enable quality control protocols are met, achieve your safety goals, and accelerate your path from challenge to solution.

Applications for dissolved oxygen measurement include:

  • Food and beverage
  • Pharmaceuticals
  • Energy and power
  • Education
  • Government
  • Water
  • Wastewater management

Meet your regulatory needs with technology that is ideal for a wide range of applications and advanced dissolved oxygen analysis in the lab. Orion advanced and premium benchtop meters offer the flexibility to measure both polargraphic and optical technology. A dedicated kit, complete with BOD stirrer probe needed to fit in a DO bottle for airtight incubation, is available with the Orion Star A213 meter.

Calibrate using water-saturated air, air-saturated water, or custom value, using Winkler titration or zero point options. Log up to 2,000 data point sets with time/date stamp, and easily transfer calibration and data logs via USB or RS232 to a printer or computer when using an Orion advanced or premium dissolved oxygen meter. 

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Browse our complete portfolio or let one of our experts help you make a selection.

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Premium

Advanced

Basic

 Orion Versa Star Pro RDO/DO
(VSTAR30 series)
Orion Star A213 RDO/DO
(STARA2130 series)
Orion  Lab Star DO113 DO
(Lab Star series)
 Premium Orion benchtop  dissolved oxygen metersAdvanced Orion benchtop dissolved oxygen meters
 Versatile, high-performance laboratory measurement system Easy-to-use, dependable laboratory metersEconomical, simplified
laboratory meters
Ideal for
applications in:
Pharmaceuticals, biotechnology, food and beverage, industrialWater, 
wastewater,
chemical, contract testing
Academic, 
environmental, 
power
Compatible probes Optical, polarographicOptical, polarographic Polarographic 
DO range (polarographic) 0 to 90 mg/L, 0 to 600% 0 to 90 mg/L, 0 to 600% 0 to 30 mg/L, 0 to 300% 
DO range (RDO optical) 0 to 50 mg/L, 0 to 500% 0 to 50 mg/L, 0 to 500% --- 
DO calibration modes Water-saturated air, air-saturated water, manual (Winkler), zero point Water-saturated air, air-saturated water, manual (Winkler), zero point 100% and 0% saturation; custom concentration value
Barometric pressure compensation Automatic with built-in barometer Automatic with built-in barometer Automatic with manual value input 
Salinity correction Automatic with conductivity module and probe or manual input Automatic with manual factor input Automatic with manual factor input 
Backlit display  Yes Yes Yes
Number of channels 4, customizable with modules11
Stirrer probe inputs21---
Data log2,000 with date/time2,000 with date/time500 sets with date/time
Calibration log30 per mode101
Identification optionsElectrode ID, sample ID, user IDSample ID, user ID---
Data export outputComputer or printerComputer or printerComputer or printer
Power supplyUniversal, 1000150–240 VAC, 50–60 Hz (Cat. No. STARA-PWR)Universal, 100–240 VAC, 50–60 Hz (Cat. No. 1010003) or 4 AA batteries Universal, 100–240 VAC, 50–60 Hz (Cat. No. LSTAR-PWR), 9DC adapter, 1.3A
  Enhance your productivity with accessories for your benchtop and portable meters. Meter Accessories ›
 

Premium

Advanced

Basic

 Orion Star A323 Dissolved Oxygen
(STARA3230 series)
Orion Star A223 Dissolved Oxygen
(STARA2230 series)
Orion Star A123 Dissolved Oxygen
(STARA1230 series)
 Premium portable Dissolved Oxygen MetersAdvanced portable Dissolved Oxygen MetersBasic portable Dissolved Oxygen Meters
Compatible probesRDO, polarographicRDO, polarographicPolarographic
DO range (polarographic)0 to 600% saturation0 to 600% saturation0 to 200% Saturation
DO range (RDO optical)0 to 50 mg/L0  to 50 mg/L---
DO calibration modesWater-saturated air, air saturated water, manual (Winkler), and zero pointWater-saturated air, air saturated water, manual (Winkler), and zero pointWater-saturated air, manual (Winkler)
Barometric pressure compensation400 to 850 mmHg,
automatic or manual
400 to 850 mmHg,
automatic or manual
---
Salinity Correction0 to 45 ppt0 to 45 ppt0 to 45
Backlit DisplayYesYes---
Number of channels111
Data log5000 with time and date stamp1000 with time and date stamp50
Data export optionsRS232,USBRS232, USBRS232, USB
AC AdapterOptional—universal,
100-240 VAC 
Optional—universal,
100-240 VAC
Optional—universal,
100-240 VAC
Battery powerIncluded—4AA'sIncluded—4AA'sIncluded—4AA's
  Enhance your productivity with accessories for your benchtop and portable meters. Meter Accessories ›
 

Premium

Advanced

Basic

 Orion Versa Star Pro RDO/DO
(VSTAR30 series)
Orion Star A213 RDO/DO
(STARA2130 series)
Orion  Lab Star DO113 DO
(Lab Star series)
 Premium Orion benchtop  dissolved oxygen metersAdvanced Orion benchtop dissolved oxygen meters
 Versatile, high-performance laboratory measurement system Easy-to-use, dependable laboratory metersEconomical, simplified
laboratory meters
Ideal for
applications in:
Pharmaceuticals, biotechnology, food and beverage, industrialWater, 
wastewater,
chemical, contract testing
Academic, 
environmental, 
power
Compatible probes Optical, polarographicOptical, polarographic Polarographic 
DO range (polarographic) 0 to 90 mg/L, 0 to 600% 0 to 90 mg/L, 0 to 600% 0 to 30 mg/L, 0 to 300% 
DO range (RDO optical) 0 to 50 mg/L, 0 to 500% 0 to 50 mg/L, 0 to 500% --- 
DO calibration modes Water-saturated air, air-saturated water, manual (Winkler), zero point Water-saturated air, air-saturated water, manual (Winkler), zero point 100% and 0% saturation; custom concentration value
Barometric pressure compensation Automatic with built-in barometer Automatic with built-in barometer Automatic with manual value input 
Salinity correction Automatic with conductivity module and probe or manual input Automatic with manual factor input Automatic with manual factor input 
Backlit display  Yes Yes Yes
Number of channels 4, customizable with modules11
Stirrer probe inputs21---
Data log2,000 with date/time2,000 with date/time500 sets with date/time
Calibration log30 per mode101
Identification optionsElectrode ID, sample ID, user IDSample ID, user ID---
Data export outputComputer or printerComputer or printerComputer or printer
Power supplyUniversal, 1000150–240 VAC, 50–60 Hz (Cat. No. STARA-PWR)Universal, 100–240 VAC, 50–60 Hz (Cat. No. 1010003) or 4 AA batteries Universal, 100–240 VAC, 50–60 Hz (Cat. No. LSTAR-PWR), 9DC adapter, 1.3A
  Enhance your productivity with accessories for your benchtop and portable meters. Meter Accessories ›
 

Premium

Advanced

Basic

 Orion Star A323 Dissolved Oxygen
(STARA3230 series)
Orion Star A223 Dissolved Oxygen
(STARA2230 series)
Orion Star A123 Dissolved Oxygen
(STARA1230 series)
 Premium portable Dissolved Oxygen MetersAdvanced portable Dissolved Oxygen MetersBasic portable Dissolved Oxygen Meters
Compatible probesRDO, polarographicRDO, polarographicPolarographic
DO range (polarographic)0 to 600% saturation0 to 600% saturation0 to 200% Saturation
DO range (RDO optical)0 to 50 mg/L0  to 50 mg/L---
DO calibration modesWater-saturated air, air saturated water, manual (Winkler), and zero pointWater-saturated air, air saturated water, manual (Winkler), and zero pointWater-saturated air, manual (Winkler)
Barometric pressure compensation400 to 850 mmHg,
automatic or manual
400 to 850 mmHg,
automatic or manual
---
Salinity Correction0 to 45 ppt0 to 45 ppt0 to 45
Backlit DisplayYesYes---
Number of channels111
Data log5000 with time and date stamp1000 with time and date stamp50
Data export optionsRS232,USBRS232, USBRS232, USB
AC AdapterOptional—universal,
100-240 VAC 
Optional—universal,
100-240 VAC
Optional—universal,
100-240 VAC
Battery powerIncluded—4AA'sIncluded—4AA'sIncluded—4AA's
  Enhance your productivity with accessories for your benchtop and portable meters. Meter Accessories ›

Explore versatile meters that combine testing capabilities

conductivity-meters

Measure pH, ion concentration, conductivity, dissolved oxygen, and temperature with a single, powerful meter. Our bench and portable multiparameter meters are designed to increase your productivity in the lab and in the field.

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Meter accessories

Bench meter and portable meter accessories make help protect you and your instruments by simplifying repetitive tasks and providing secure storage and transportation.

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Orion Lab Star DO113 DO Bench Meter

The Thermo Scientific Orion Lab Star DO113 Dissolved Oxygen Bench Meter is ideally suited for laboratories with users of varying levels of technical expertise and who require a simple-to-calibrate and use meter for routine dissolved oxygen testing. Watch this video to explore the features available with the Orion Lab Star DO Bench Meter.  


Virtual Demo

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Get answers to your top water analysis and water purification questions and see products in action. Sign up for a demo to learn about:

·  pH & Multiparameter Benchtop & Portable Meters
·  Electrodes (pH Electrodes, ISE, Conductivity, DO)
·  Potentiometric Titrators
·  Spectrophotometers
·  Water Purification Systems

Schedule Demo

Thermo Scientific DO Meter Features

Ease-of-use with Orion multiparameter meters

Focused on
Ease-of-Use

  • Large, easy-to-view displays help make recording measurements easier, faster and can help reduce documentation errors 
  • Onscreen instructions provide guidance on calibration and setup for more consistent operation with minimum training
Reliable electrochemistry measurements in the field

Provide Fast and Reliable Measurements

  • Selectable read modes and reading stability indicator capture and notify when measurements are ready 
  • Calibration information shown with measurements and selectable alarms help to ensure measurement integrity
Assist with compliance requirements

Assist with Compliance Requirements

  • Measure dissolved oxygen in percent saturation or mg/L with temperature
  • Perform DO calibrations using water-saturated air, air-saturated water, custom value (Winkler) or zero point
  • Select a meter with built-in barometer for automatic pressure compensated readings 

International standards for regulatory compliance requirements: 

Parameter

EPA

SM

ASTM

ISO

China MEP

USP

EP

AOAC

Other

pH

EPA 150.14500-H+(B)D1293 (A,B)10523GB/T 6920<791>2.2.3973.41FDA - 21 CFR 114.90

pH of Soil/Solid Waste

SW-846 9040C & 9045D D497210390GB/T15555  994.16 - 994.18USDA NRCS

Conductivity

EPA 120.1; SW-846 9050A2510 (B)D1125 (A)7888n/a<645>2.2.38973.40PSS-78 (salinity)

Dissolved Oxygen

 4500-O (G)D888 (B, C)17289; 5814HJ506    

BOD

 5210 (B) 5815HJ505  973.44 

Fluoride

SW-846 92144500-F (C )D1179 (B)10359GB7484    

Ammonia

 4500-NH3 (D, E) D1426 (B)6778     

Nitrate

Orion 601; SW-846 9210A4500-NO3 (D)       

Sulfide

SW-846 92154500-S2 (G)D4658      

Cyanide

SW-846 92134500-CN (F)D2036 (A)      

Chloride

SW-846 92124500-Cl (D)D512 (C) GB11896    

Bromide

SW-846 9211        
 SM: Standard Methods for the Examination of Water and Wastewater. APHA, AWWA, WEF.
 ASTM: American Society for the Testing and Materials
 ISO: International Organization for Standardization
 USP: United States Pharmacopeia
 EP: European Pharmacopeia
 China MEP: China Ministry of Environmental Protection
 AOAC: Association of Official Analytical Chemists
 NRCS: Natural Resources Conservation Service
 PSS-78: Practical Salinity Scale of 1978
 FDA: U.S. Food and Drug Administration
 USDA: United Stated Department of Agriculture

See our complete list of DO measurement offerings

Meter Accessories

find the right benchtop meter for your pH and ORP measurement needs

Enhance your productivity while protecting your investment. We offer an assortment of meter accessories for our benchtop and portable meters.

Electrodes and probes

Electrodes, probes, and sensors for use with conductivity meters

An extensive assortment of quality pH electrodes and sensors are available in a variety of body materials, body styles, fill types, reference styles, and junctions to meet the needs of your sample measurements.

Standards and solutions

Orion standards and solutions

We offer buffers, electrode storage solutions, electrode cleaning solutions, lab buffer kits, and electrode filling solutions for your measurement needs. Find the buffers and solutions that you need for your process.

Support

Knowledge Base: Certificates of Analysis and SDS for Orion, ROSS, AQUAfast, AquaMate, and AquaSensors products.

Orion Meters Software and Upgrades
Thermo Scientific Orion benchtop and portable meters are designed to help deliver accurate, consistent results, day after day. Boost productivity by upgrading your software today.

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