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Oakton Instruments
setting the standard again and again

OAKTON offers scientific instruments for research, industrial, and educational uses.

These instruments are famous for their unique combination of innovative design and exceptional value, and represent "best buys" in their categories.


  • Conductivity/TDS Calibration Solutions

    Oakton

    NIST traceable materials ±1% accuracy at 25°C All OAKTON Conductivity/TDS calibration solutions are cross checked using different test methods, premixed, and ready to use. OAKTON conductivity/TDS solution bottles are labeled with the name and CAS number for all ingredients…

  • pH/CON 700 Benchtop Meter

    Oakton

    Easily toggle between pH, mV, conductivity, TDS, and temperature measurements at the touch of a button Space-saving design takes up less room on the bench than other meters Large display lets you see your measurements from across the lab Conductivity and TDS autoranging chooses the best…

  • Waterproof Multi-Parameter Testers

    Oakton

    PCSTestr™ 35, PCTestr™ 35 and PTTestr™ 35 Mutiple measurements in one instrument Displays measured value along with temperature — simply press a key to toggle between pH, conductivity, TDS, and salinity where applicable Waterproof, dustproof housings float …

  • pH 700 Benchtop Meter

    Oakton

    Compact footprint is over 40% smaller than other benchtop meters Large display permits easier readout viewing Datalogging allows you to store and recall up to 100 data sets The easy-to-use, microprocessor-based pH 700 benchtop meter measures pH, mV, relative mV, and temperature. The…

  • Waterproof pH Testers

    Oakton

    Features three-point push button calibration High accuracy ATC Self-diagnostic messaging Non-volatile memory Double-junction polymer sensor Three waterproof pHTestr® models provide highly accurate measurements over a range of -1.0 to 15.0 pH. Large dual-display LCD offers enhanced…

  • Oakton Temp 10 Thermocouple Thermometers

    Oakton

    The Temp 10 thermometers work in any environment from the lab to the production floor. The sturdy optional armor protects against knocks and jars. All models are ergonomically designed for both large and small hands alike. The sealed keypad and ABS case meet IP54 standards for splash resistance.…

  • Waterproof DO 450 Meter

    Oakton

    Affordable optical RDO technology reduces maintenance time and costs Eliminates costly, tiresome membranes and solutions Rugged, IP67-rated housing for plant and field applications USB and RS-232 output for up to 500 data sets 500 hours battery life, or optional universal power…

  • Digi-Sense Pressure and Flow Meter

    Oakton

    Monitor key conditions across HVAC components, promoting good indoor air quality Ideal tool for helping HVAC field technicians determine the performance of heating and cooling systems. This handheld meter measures differential and static pressure, and calculates air velocity and flow. Meters…

  • pH Buffer Solutions

    Oakton

    …with pH vs. temperature tables for accurate calibration All Oakton pH buffer solutions are freshness dated, and standardized against NIST-traceable references to ensure quality. ± 0.01 pH at 25°C. Oakton pH Buffer Solution Bottles are labeled with the name and CAS number…

  • "All-in-One" pH Electrode

    Oakton

    For use with 600 series meters

  • Waterproof pH 450 Meter

    Oakton

    Backlit, rugged waterproof meter is ideal for any environment Intuitive, user-friendly icons--electrode status displays pH slope Grip-Clip™ electrode holder quickly and easily secures electrode to side of beaker or container USB or RS-232 output for up to 500 data sets …

  • Solution Kits

    Oakton

    Be sure to select both the electrode and solution kit to complete your measurement system. Solution kits contain the solutions and accessories needed for calibration, sample preparation, and measurement of ion concentration and activity. All solutions are supplied with MSDS (Material Safety Data…

  • EcoTestr™ CTS Pocket Conductivity, Salinity, and TDS Meter

    Oakton

    …a sample cup and as a stabilizing base to stand the meter upright IP67-rated housing is waterproof and floats This new addition to the Oakton EcoTestr product line features updates to make measuring water quality easier and faster. The display is larger with a better viewing angle, has…

  • DO 700 Benchtop Meter

    Oakton

    Compact size is ideal for laboratory dissolved oxygen measurement applications Large brightly-lit LCD shows allows for easy viewing of measured values Low-maintenance galvanic probe requires no warm-up time Built-in memory stores up to 100 data points DO 700 meter…

  • PC 650 pH/Conductivity Meters

    Oakton

    Two most common electrochemistry measurements in one convenient meter! Durable waterproof and dustproof design with IP67 rating – Even with no probes attached Push-button pH calibration at up to six points – Up to 15 buffer options with autobuffer recognition of USA, NIST,…

  • Benchtop PC 2700 Multiparameter Meter

    Oakton

    Great general-purpose meter for laboratories where GLP data-management is required Large display with bright backlight Dynamic reading stability indication indicates when your measurement is stable Up to 500-point memory with date-time stamp for GLP Password protection for both setup…

  • Waterproof CON 600 Series Conductivity Meters

    Oakton

    Waterproof and dustproof with IP67 rating and it floats! This microprocessor-based CON 600 Conductivity meter features a superior waterproof housing that floats! It’s perfect for conditions that ruin ordinary meters. The CON 600 reads conductivity from 0 to 199.9 mS with…

  • Direct connect, thin stem pH electrode (9 mm diameter)

    Oakton

    High accuracy in changing temperature conditions Temperature readout and automatic temperature compensation (ATC) Calibrate the TDS 6+ at one point and all five ranges are covered These meters feature easy, push-button operation, a convenient HOLD function, and Auto-off function that…

  • CON 700 Benchtop Meter

    Oakton

    An affordable way to take consistent, accurate conductivity measurements in your laboratory Compact size frees up bench space Large brightly lit display allows for easy reading of measured values Easily toggle between conductivity and TDS at the touch of a button! CON 700…

  • Zero Oxygen Calibration Solution

    Oakton

    Oakton® zero oxygen standard solution ensures accuracy of your dissolved oxygen meter. For accurate dissolved oxygen blanking, the solution undergoes testing using the Winkler method. The special packaging in the PETG bottle improves shelf life. Follow all precautions recommended by your…

  • T-100 Turbidity Meter Kit

    Oakton

    Auto-ranging from 0 to 1000 NTU Waterproof and dustproof Accurate, repeatable measurements The T-100 turbidity meter is for monitoring turbidity in chemical, food and industrial application. This lightweight portable meter features an IP67 housing for protection against water and…

  • DO 6+ Meters

    Oakton

    Low-maintenance, galvanic probe requires no warm-up time Includes protective rubber boot which also functions as a benchtop stand These meters provide a great value. The ranges work to test water quality in wastewater, surface water, ground water, or drinking water. a clear LCD display…

  • Dissolved Oxygen Meter Accessory Kit

    Oakton

    For DO 110, DO 300, and DO 600 meters Bring everything you need for accurate DO measurement with you when you work in the field. Includes 50 mL of electrolyte solution, two replacement membrane caps, rinse bottles, and hard carrying case with space for your meter and probe. (Meter not…

  • Power adapter 100-240 VAC

    Oakton

  • Probe Maintenance for DO 6, DO 6+, and DO 700 Meters

    Oakton

    Replacement membrane assembly consists of a preassembled membrane and cap. Simply screw replacement membrane assembly onto the probe you already have. Includes 50 mL of electrolyte solution.

  • Replacement Electrolyte Solution

    Oakton

    Ensure accurate readings by using Oakton solutions with your DO meter. Replacement electrolyte should be used whenever you replace the membrane or membrane cap.

  • Benchtop DO 2700 Dissolved Oxygen Meter

    Oakton

    Brilliant backlit display with dynamic stability indication Up to 500 point memory with date-time stamp for GLP Output data to PC or printer DO 2700 meter measures dissolved oxygen in mg/L, ppm, or % saturation with simultaneous temperature display in °F or °C. Independent 100% and 0%…

  • Waterproof DO 600 Meters

    Oakton

    Stores up to 500 data points with time-and-date stamp for GLP compliance These top-of-the-line waterproof meters offer single or multiparameter measurement capabilities to meet all of your testing needs. The IP67-rated housing allows use in dirty and wet environments without harm to the meter.…

  • Probe Maintenance for DO 110, DO 300, and DO 600 Meters

    Oakton

    1213U81 (WD-35640-80): Includes two complete membrane cap assemblies and 50mL of electrolyte solution. 1213U80 (WD-35640-72): Replacement membrane assembly consists of a preassembled membrane, membrane lock, O-ring, and cap. Simply screw replacement membrane assembly onto your probe. …

  • Food Safety IR thermometer

    Oakton

    Check critical food temperatures and monitor HACCP food safety zones with this combination contact/noncontact thermometer. LED’s rapidly indicate if food temperature is in the bacterial growth safety zone. Green lights indicate safe temperatures below 40°F (4°C) and above 140°F…

  • Replacement Probe for pH/CON 10 Meter

    Oakton

    The pH/CON 10 Meter includes a versatile multi-sensor probe that eliminates the need to switch probes when switching measurement modes. Three-point pH calibration with auto buffer recognition and four-point conductivity calibration (one per range) provides accuracy. Multi-sensor probe can be…

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