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  • Products (91)
  • Self-Stirring BOD Probes

    Replaceable cap membrane Removable stirring mechanism Interchangeable design Simplifies measurement operations Use with standard 300 mL BOD bottles; no need for external stirring devices. Improved membrane life assures measurement consistency and speeds maintenance. Probe accuracy…
  • Model 550 Dissolved Oxygen Meter

    Portable, one-handed operation that is innovative and easy-to-use Field replaceable DO electrode modules User selectable °C or °F Calibrate in % sat. or mg/L Waterproof, meets IP-67 specifications Measurements are fast and easy. Instrument panel provides simultaneous readings of dissolved…
  • Model 55 Dissolved Oxygen Meter

    Reads in mg/L or % oxygen Push-button calibration Built-in calibration chamber Salinity and altitude compensation Probe sinks easily with stainless steel body Meter has a large backlit LCD which displays oxygen and temperature. All readings are automatically temperature compensated and can be…
  • Waterproof ExStik® II Dissolved Oxygen Meter/Kit

    Oxygen level displayed as % Saturation or Concentration (mg/L [ppm]) Adjustable Altitude Compensation (0-20,000ft in 1,000ft increments) Adjustable Salinity Compensation from 0 to 50ppt Analog bargraph indicates trrends Memory stores up to 25 data sets with DO and Temperature reading …
  • Orion Star A123 Dissolved Oxygen Portable Meter

    Thermo Scientific Orion
    Thermo Scientific Orion Star A123 Dissolved Oxygen Portable Meters combine simplicity with accuracy. A large LCD displays dissolved oxygen readings along with temperature. Icons provide quick updates on battery life and completed calibration status. Simple button layout and onscreen …
  • Dissolved Oxygen/BOD Meters

    Model 5000 (7230D60) Microprocessor-based, menu-driven meter Large, graphical LCD Datalogging up to 100 points Auto-stabilization Display provides on-screen menus and large data fields. Keys have tactile and audio response. RS232 interface. Features a real time clock. Dimensions: 9" L…
  • Inolab Meter Supplies

  • Waterproof DO 450 Meter

    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…
  • Dissolved Oxygen Field Probe

    Model 5739 (7230R35) Screw-apart construction lets you quickly change from one cable length to another Ability to replace either probe or cable without replacing the entire assembly Pressure compensation, temperature compensation, built-in weight, long-life, polarographic…
  • SevenGo™ pro SG98 and SG9 Dissolved Oxygen Meters

    Mettler Toledo
    SevenGo™ instruments – robust meters for professional measurements The dual-channel instrument SevenGo Duo pro SG98 and the single-channel instrument SevenGo pro SG9 offer: Waterproof and dustproof in accordance with IP67 User-friendly display with background…
  • Dissolved Oxygen Meter

    No warm-up time required Memory stores and recalls 16 readings Automatic shut-off Water-resistant membrane keypad Galvanic probe with 10’ cord lets you take measurements immediately, with no wait. Replaceable membrane cap assembly makes probe maintenance hassle-free.…
  • ProODO 4-Meter Field Kit

    The YSI ProODO 4m Field Kit has a dissolved oxygen (DO) meter that uses an optical, luminescent-based technology and has direct salinity and altitude compensation, one-point DO calibration (or two-point with a 0% value), one-point barometer calibration, an internal barometer to ensure accuracy,…
  • EcoSense DO200A Dissolved Oxygen/Temperature Meters

    The EcoSense® line of compact, handheld instruments provides the most accurate data in the most affordable format. The instruments feature an easy-to-use interface, one-hand operation, IP67 waterproof case, and low cost of ownership over the life of the product. The DO200A simultaneously…
  • DO Meter With Carrying Case

    HI 9142 is a rugged, waterproof meter that solves the common problems of field use that can damage a meter, rapidly deteriorating its performance and life. Calibration is performed with a zero oxygen solution, while 100% calibration is done in air. The polarographic probe is provided…
  • Pro20 Dissolved Oxygen

    Handheld dissolved oxygen instrument for the lab or field! 3-year instrument; 2-year cable warranty User-replaceable cables and sensors. Choose polarographic or galvanic for the field or a self-stirring BOD probe for the lab One Touch Cal allows easy DO calibrations within 3 seconds…
  • ProfiLine Single-parameter Portable Oxi Meter Series

    The portable WTW ProfiLine meter series is available in three (3) series versions, the 3110/3205-Basic series, 3210-Professional series and 3310-Advanced series, each with a distinct level of sophistication for the independent measurement of pH, conductivity, or dissolved oxygen. All versions have…
  • Replaceable DO Module

    Easy user-replaceble sensor allows for quick sensor replacements if needed.  Quickly switch DO sensors without having to send in the instrument for repair or replacing the entire cable assembly.  Uses convenient screw-on cap membranes making membrane changes simple and easy Use…
  • SevenExcellence™ Dissolved Oxygen/BOD Meters

    Mettler Toledo
    The S600 SevenExcellence™ DO meter allows users to determine dissolved oxygen content in samples polarographically using any of METTLER TOLEDO's state-of-the art InLab® 605 polarographic dissolved oxygen sensors. The S900 SevenExcellence DO meter allows users to determine…
  • Dissolved Oxygen Meter Kit

    Sper Scientific
    Measures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal waste water, aquariums and fish hatcheries Automatic temperature compensation as well as compensation for salinity and altitude (all factors directly effecting DO readings) …
  • Portable DO Meters

    Convenient Portable Dissolved Oxygen Meter for Wherever Your Work Takes You. After more than a century of perfecting the art of measurement through our durable weighing products, OHAUS precision is now available in the form of

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