Thermo Scientific will help solve your toughest analytical challenges with a world-class portfolio of products and technologies. From routine test to complex research and discovery, you can depend on Thermo Scientific for high-end water quality instruments. Rely on Thermo Scientific products whenever and wherever you need to go farther, analyze more, and move science forward. read more

Thermo Scientific offers a full range of water analysis instruments from pH, ISE, conductivity and dissolved oxygen meters, electrodes and solutions, to colorimetry and titration monitors. Thermo Scientific Orion products are recognized worldwide for quality and accuracy, serving markets such as environmental, food and beverage, pharmaceutical, and general laboratory equipment.

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Thermo Scientific AquaMate 7000 Vis Spectrophotometer
325 to 1100 nm wavelength range, single beam, for water and wastewater analysis
$4,083.00
$3,674.70
Thermo Scientific Orion STAR A329 pH / ISE / Conductivity / RDO / DO Meter
Portable, top choice for advanced multiparameter measurements
$1,670.00
$1,503.00
Thermo Scientific Orion pH Electrodes
pH electrodes available in a variety of styles
$131.00
$117.90
In Stock
Thermo Scientific Orion STAR A211 / STAR A221 pH Meter
Durable, dependable and accurate pH meters
$580.00
$522.00
Thermo Scientific Orion STAR A111 / STAR A121 pH Meter
Benchtop or portable meters for easy, affordable and accurate pH measurements
$498.00
$448.20
Thermo Scientific Orion ROSS pH Electrodes
The best performing pH electrodes on the market available in various sizes, tips and special features
$411.00
$369.90
Thermo Scientific Orion AQUAfast AQ3700 Colorimeter
A colorimeter with over 70 pre-programmed method options with liquid, powder and tablet tests
$1,118.00
$1,006.20
Thermo Scientific Orion STAR A212 / STAR A222 Conductivity Meters
Accurate, rugged, measure conductivity, resistivity, salinity and TDS
$806.00
$725.40
Thermo Scientific Orion VERSA STAR Electrochemistry Meter
High-performance lab measurement system with advanced access features designed to meet your most challenging applications
$1,140.00
$1,026.00
Thermo Scientific AquaMate 8000 UV-Vis Spectrophotometer
Dual-Beam Optics, instant-on and maintenance-free xenon lamp, 1.8 nm Bandwidth
$7,088.00
$6,379.20
Thermo Scientific Orion STAR A215 pH / Conductivity Meter
Accurately measure pH, mV/RmV, conductivity, resistivity, salinity and TDS
$1,399.00
$1,259.10
Thermo Scientific Orion STAR A325 pH/Conductivity Meter
Portable, accurately measures pH, conductivity, resistivity, salinity and TDS
$1,227.00
$1,104.30
Thermo Scientific Orion AQUAfast COD165 Thermoreactor
Ideal for environmental and wastewater monitoring with EPA accepted methods
$1,189.00
$1,070.10
Thermo Scientific Orion AQ4000 AQUAfast IV Colorimeter
The most advanced portable microprocessor-based, LED colorimeter on the market today
$1,177.00
$1,059.30
Thermo Scientific Orion AQUAfast AQ3010 Turbidity Meter
Easy to use portable meter with an IR LED for ISO 7027 turbidity measurements from 0 to 1000 NTU
$978.00
$880.20
Thermo Scientific Orion Dual Star Multiparameter Meter
Measure pH, ISE, mV, relative mV, ORP and temperature with one unit
$1,690.00
$1,521.00
Thermo Scientific Orion STAR A214 pH / ISE Meter
Accurately measure pH/ISE, ammonia, fluoride and sodium
$1,312.00
$1,180.80
Thermo Scientific Orion AQUAfast AQ4500 Turbidity Meter
Highly advanced, microprocessor based turbidity meter allows measurements based on EPA 180.1, ISO 7027 and other modes
$1,414.00
$1,272.60
Thermo Scientific Orion Dissolved Oxygen Probes
Dissolved oxygen probes for your Thermo Scientific Orion meter
$550.00
$495.00
Thermo Scientific Orion STAR A112 / STAR A122 Conductivity Meters
Simple, affordable and accurate conductivity readings
$626.00
$563.40
Thermo Scientific Orion STAR A213 / STAR A223 RDO Dissolved Oxygen Meter
Accurate, rugged, dependable RDO/DO meters for the lab or the field
$806.00
$725.40
Thermo Scientific Orion STAR A322 Conductivity Meter
Portable, waterproof measures conductivity, resistivity, salinity and TDS
$980.00
$882.00
Thermo Scientific Orion STAR A324 pH/ISE Meter
Portable, accurately measures pH, mV/RmV and ISE measurements
$1,030.00
$927.00
Thermo Scientific Orion STAR A321 pH Meter
Portable, waterproof, accurately measures pH
$734.00
$660.60
Thermo Scientific Orion No Cal pH Electrode
Epoxy body pH electrode with 8-pin DIN connector and doesn't need calibration
$411.00
$369.90
Thermo Scientific Orion STAR A323 RDO / Dissolved Oxygen Meter
Portable, large display, accurate RDO/DO measurements
$983.00
$884.70
Thermo Scientific Orion STAR A113 / STAR A123 Dissolved Oxygen Meter
Easy, affordable and accurate dissolved oxygen measurements
$635.00
$571.50
Thermo Scientrific Orion STAR A326 pH / RDO / Dissolved Oxygen Meter
$1,247.00
$1,122.30
Thermo Scientific Orion STAR A216 pH / RDO / Dissolved Oxygen Meter
durable, dependable, wall-mountable pH/RDO/DO meters
$1,535.00
$1,381.50
Thermo Scientific Orion ISE Electrodes
Measure ion concentrations in water, food, pharmaceuticals and biological samples
$437.00
$393.30
Thermo Scientific Orion ORP Electrodes
ORP/redox electrodes available in a variety of styles
$359.00
$323.10
Thermo Scientific Orion AC301S Turbidity Standard Kit
EPA approved and ISO accepted polymer-based primary turbidity standard kit, set of 4
$226.00
$203.40
Thermo Scientific Orion AQUAfast Reagent Chemistries
Colorimeter reagents available in a wide range of parameters and styles
$17.40
$15.66
Thermo Scientific Orion Ammonia Electrode Storage Solution
Cleaning solution for Thermo Scientific Orion ammonia electrodes
$69.50
$62.55
Thermo Scientific Orion pH Electrode Storage Solutions
Storage solutions for Thermo Scientific Orion pH electrodes
$57.00
$51.30
Thermo Scientific Orion Swing Arm Stand
Swing arm probe stand for Thermo Scientific Orion Star series meters
$230.00
$207.00
Thermo Scientific Orion pH Buffers
pH buffers for Thermo Scientific Orion pH electrodes
$19.40
$17.46
Thermo Scientific Orion Green pH Electrodes
Environmentally friendly pH electrodes contain no lead, mercury or other hazardous substances
$138.00
$124.20
Thermo Scientific Orion AC45ST Turbidity Standard Kit
Primary turbidity standard kit, set of 5
$303.00
$272.70
Thermo Scientific Orion Conductivity Standards
Conductivity standards for Thermo Scientific Orion conductivity electrodes
$41.50
$37.35
Thermo Scientific Orion STARA-BEA Electrode Arm
Electrode Arm, Orion Star A, no base
$166.00
$149.40
Thermo Scientific Orion ATC Probes
Automatic temperature compensation probes that are environmentally safe, mercury-free and EPA compliant
$256.00
$230.40
Thermo Scientific Orion pH Electrode Cleaning Solutions
Cleaning solutions for Thermo Scientific Orion pH electrodes
$32.90
$29.61
Thermo Scientific Orion DuraProbe Conductivity 4-Cell
Conductivity 4-Cell, Mini DIN, 1.5M epoxy probe with a cell constant of 0.475
$539.00
$485.10
Thermo Scientific Orion Colorimeter Vials
16 and 24mm replacement vials for Thermo Scientific Orion colorimeters
$76.40
$68.76
Thermo Scientific Orion Conductivity Cell
2-Electrode conductivity cells , SS K=0.1 Mini DIN, 1.5m, for labortatory and ultra pure water applications
$708.00
$637.20
Thermo Scientific Orion Electrode Filling Solutions
5 x 60 mL bottles of electrode filling solution
$95.30
$85.77
Thermo Scientific Orion Inkjet Printer
Star series inkjet printer creates an instant record of test results
$690.00
$621.00
Thermo Scientific Orion Vial Cleaning Brushes
Vial Cleaning Brushes, 5 pk for Thermo Scientific Orion AQUAfast meters
$34.70
$31.23
Thermo Scientific Orion Automatic Stirrer Probe
Automatic stirrer probe with paddle for Thermo Scientific Orion benchtop Star series meters
$248.00
$223.20
Thermo Scientific Orion ISE Ionic Strength Adjusters (ISA) & Special Reagents
ISE ionic strength adjusters (ISA) and special reagents for Thermo Scientific Orion ISE electrodes
$63.20
$56.88
Thermo Scientific Orion ISE Calibration Standards
ISE calibration solutions for Thermo Scientific Orion ISE electrodes
$68.50
$61.65
Thermo Scientific Orion 9300BNWP Electrode Handle
Waterproof BNC connector electrode handle for certain ISE electrodes
$386.00
$347.40
Thermo Scientific Orion Optical Cap
Replacement optical dissolved oxygen cap kit for RDO portable dissolved oxygen meters
$108.00
$97.20
Thermo Scientific Orion Dissolved Oxygen Maintenance Kit
Maintenance kits for Thermo Scientific Orion dissolved oxygen meters
$115.00
$103.50
In Stock
Thermo Scientific Orion ISE Filling Solutions
ISE calibration solutions for Thermo Scientific Orion ISE electrodes
$74.40
$66.96
Thermo Scientific Orion STARA-ESPH pH Electrode Holder
Holds one pH electrode in the pH electrode sleeve, can be attached to either side of the meter armor
$28.60
$25.74
Thermo Scientific Orion Dissolved Oxygen Membrane Caps
Membrane caps for Thermo Scientific Orion dissolved oxygen electrodes
$53.10
$47.79
Thermo Scientific Orion Turbidity Vials
24mm replacement vials for Thermo Scientific Orion turbidity meters, 12 pack
$152.00
$136.80
Thermo Scientific Orion VSTAR-CND Conductivity Module
Measures conductivity, resistivity, salinity and TDS
$915.00
$823.50
Thermo Scientific Orion Star Series Adapters
Adapters for Thermo Scientific Orion Star series meters
$60.00
$54.00
Thermo Scientific Orion Armor
Orion Star A series portable meter protective armor with hand strap/built-in stand, storage sleeve, and holders
$104.00
$93.60
Thermo Scientific Orion COD Test Kits
COD test kits for the Thermo Scientific Orion AQUAfast COD165 thermoreactor
$47.20
$42.48
Thermo Scientific Orion Conductivity Accessories
Conductivity accessories for Thermo Scientific Orion conductivity electrodes
$71.80
$64.62
Thermo Scientific Orion 810017 Storage Sleeve
Covers entire glass body of standard size pH electrodes (12 x 120 mm)
$53.80
$48.42
Thermo Scientific Orion Dissolved Oxygen Calibration Accessories
Calibration accessories for Thermo Scientific Orion dissolved oxygen electrodes
$146.00
$131.40
Thermo Scientific Orion VSTAR-PH pH Module
Measures pH, mV/RmV and Temperature
$570.00
$513.00
Thermo Scientific Orion All-in-One 60mL pH Buffer Kit
kit including 4.01, 7.00 and 10.00 buffers pH electrode storage solution and pH electrode cleaning solution
$46.20
$41.58
Thermo Scientific Orion Turbidity Vials
Replacement 25mm sample vials for Thermo Scientific Orion AQUAfast meters, pack of 3
$97.90
$88.11
Thermo Scientific Orion STARA-CS Carrying Case
Hard carrying case for the Orion A-series
$143.00
$128.70
Thermo Scientific Orion AquaMate Power Cord
240 V UK plug, 220 V Euro plug and 110 V US plug options
$32.70
$29.43
Thermo Scientific Orion AQUAfast Zero Kit
Zero vial kit for Thermo Scientific Orion AQ4000 Colorimeter
$55.20
$49.68
Thermo Scientific Orion ORP Standards
ORP standards for Thermo Scientific Orion pH electrodes
$62.80
$56.52
Thermo Scientific Orion VSTAR-ISE pH/ISE Module
$1,070.00
$963.00
Thermo Scientific Orion Printer Paper
Replacement printer paper for Model 1010006 ink jet printer
$16.00
$14.40
Thermo Scientific Orion STARA-HB Base
Base, Orion Star A, for use with benchtop electrode arm
$55.00
$49.50
Thermo Scientific Orion Electrode Storage Chamber
Electrode storage chamber (for meter impact jacket) for Thermo Scientific Orion Star series meters
$63.00
$56.70
In Stock
Thermo Scientific Orion ISE Membranes & Modules
ISE membranes and modules for Thermo Scientific Orion ISE electrodes
$71.30
$64.17
In Stock
Thermo Scientific Orion Turbidity Standard
Formazin turbidity standard, 4000NTU, 475mL
$88.40
$79.56
Thermo Scientific Orion AquaMate 6-Position Cell Holder
$233.00
$209.70
Thermo Scientific Orion VSTAR-RD RDO/DO Module
Measures RDO or DO in concentration or % saturation
$915.00
$823.50
Thermo Scientific Orion STARA-ESCD Probe Holder
Conductivity and DO probe holder for use with armor, Orion Star A
$28.60
$25.74
Thermo Scientific Orion VSTAR-LR pH/LogR Module
Advanced electrode diagnostics, no temperature sensor needed
$895.00
$805.50
Thermo Scientific Orion Dissolved Oxygen Solution
Polarographic electrolyte solution for Thermo Scientific Orion dissolve oxygen electrodes
$17.60
$15.84
Thermo Scientific Orion Silicon Oil and Cloth
Replacement silicon oil and cloth for Thermo Scientific Orion turbidity meters
$24.30
$21.87
Thermo Scientific Orion Silicon Oil and Cloth
Replacement silicon oil and cloth for Thermo Scientific Orion turbidity meters
$43.50
$39.15
Thermo Scientific Orion Replacement Ink Cartridge
Replacement ink cartridge for Model 1010006 ink jet printer
$45.80
$41.22
Thermo Scientific Orion USB Memory Stick
AquaMate methods, USB memory stick
$52.50
$47.25
Thermo Scientific Orion COD Standards
COD standards for the Thermo Scientific Orion AQUAfast COD165 thermoreactor
$54.40
$48.96
Thermo Scientific Orion STARA-PWR Adapter
Power adapter, Orion VERSA STAR
$65.40
$58.86
Thermo Scientific Orion Dissolved Oxygen Probe Guards
Probe guards for Thermo Scientific Orion dissolved oxygen electrodes
$133.00
$119.70
Thermo Scientific Orion Dissolved Oxygen BOD Adapters
BOD adapters for Thermo Scientific Orion dissolved oxygen electrodes
$142.00
$127.80
Thermo Scientific Orion Replacement Paddles
3 pack of replacement paddles for Thermo Scientific Orion stirrer probe (096019)
$144.00
$129.60
Thermo Scientific Orion Star Series Case
Soft field case for Thermo Scientific Orion Star series meters
$150.00
$135.00
Thermo Scientific Orion AquaMate 1-Position Cell Holder
$153.00
$137.70
Thermo Scientific Orion RS232 Cable
RS232 cable for method uploads and data downloads
$179.00
$161.10
Thermo Scientific Orion AquaMate 3-Position Cell Holder
$472.00
$424.80
Thermo Scientific Orion ROSS ISE Electrodes
Orion ROSS sodium combination ISE
$697.00
$627.30