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  • Oxygen Meter, Model 58, 115V

    YSI

    Portable, battery-operated unit with digital LCD Provides four-digit LCD readout of dissolved oxygen to 0.1 or 0.01 mg/L, % air saturation or temperature Dissolved oxygen ranges are automatically temperature-compensated to an accuracy of ±1% of readings 5° - 45°C and…

  • Pro20i Dissolved Oxygen Instruments

    YSI

    Pro20i Parameters Dissolved Oxygen (DO%, DO Local, mg/L, ppm) Temperature (°C, °F) Barometric Pressure (mmHg, inHg, mbar, psi, kPa) The YSI Pro20i provides everything you need in a handheld dissolved oxygen meter. Ruggedness, simplicity and reliability are the…

  • Replacement Parts & Accessories for YSI Model 556

    YSI

    The 556 MPS handheld instrument has been discontinued. YSI will continue to support existing 556’s through 2020. The Professional Plus (Pro Plus) or ProDSS handheld instruments are suitable replacements. Versatile, multi-parameter hand-held instrument Measures…

  • Pro Plus Multiparameter Instrument

    YSI

    Pro Plus. The ultimate handheld sampling instrument Tougher. Smarter. More Versatile. Tougher Do your job with confidence even in the harshest field conditions. The drop-tested Pro Plus was designed tough with military-spec connectors, a two-year warranty on all cables, weighted sensor…

  • ProDIGITAL ODO/T Probes

    YSI

    The Pro DIGITAL ODO/T probe and cable assembly features integral optical dissolved oxygen and temperature sensors. Cable lengths are available up to 100 meters. The ODO/T probe assembly pairs with the ProSolo Handheld to form a complete sampling system. Please visit the ProSolo ODO/T Kits …

  • Platinizing Equipment

    YSI

    For replatinizing conductivity cell electrodes Replatinizing can be completed in less than five minutes Bottle included Contains a milliammeter, current control and reversing switch housed in a plastic case. Bottle can be used for holding the cell and platinizing solution during…

  • EcoSense DO200A Dissolved Oxygen/Temperature Meters

    YSI

    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…

  • pH/Temperature Probe, 4 meter cable

    YSI

    Waterproof pH and temperature field probe and cable assembly. Used with pH100, pH100A

  • Oxygen Meter Instrument - 230V

    YSI

    The YSI 58 is a proven field and laboratory instrument. The 58 displays oxygen concentrations in two temperature-compensated modes. The instrument offers manual salinity correction, recorder output, and operation from line power or batteries. The case also holds additional batteries for an optional…

  • Turbidity Standards

    YSI

    We recommend that YSI-certified polymer-based standards are used for best results. YSI's polymer-based standards are prepared and labeled so they are traceable to the EPA's primary standard, Formazin Polymer standards from other vendors may not be properly adjusted to meet…

  • TITRONIC® 500

    YSI

    The TITRONIC® 500 is the ideal piston burette for manual titrations, accurate dosing applications as well as the preparation of solutions. When used with TitriSoft 3.0, it acts as a titration burette or with the TitroLine®7000 and TitriSoft 3.0, it is an automatic dosing unit perfect to…

  • pH Buffers

    YSI

    Various pH buffers for pH probe calibration. Buffer cases are available with a single buffer type or with an assortment of buffers (2 pints of pH 4, 7, and 10 buffers).

  • Model 900 Chlorine Colorimeter

    YSI

    Waterproof, accurate, easy to use colorimeter The 900 colorimeter is a rugged, waterproof, single parameter instrument for the measurement of Total chlorine or Free chlorine. Whether you need to measure chlorine in wastewater, chlorine in groundwater, or in pools, this chlorine tester is…

  • Confidence Sol'N Ph/Orp/Con

    YSI

    Never worry about the accuracy of your pH, ORP, or conductivity data again! Ensure probe performance with the 5580 Confidence Solution®. This is not a calibration solution but it is a simple probe verification check. Simply immerse your multiparameter probes in the solution and verify the…

  • Nitrate Standards

    YSI

    Calibration solutions for field instruments with a nitrate sensor. 500 mL of standard (plastic bottle) is available in 1, 10, and 100 mg/L.

  • TruLine Laboratory Electrode Kits

    YSI

    Never before has YSI offered ISEs for the lab, but this expansive line of electrodes is designed to meet the needs of customers who measure effective ion concentration in applications such as wastewater, drinking water, environmental testing, and the food/beverage industry. There are 15…

  • Galvanic DO Probe

    YSI

    Galvanic DO Sensor for use with Professional Plus and Pro20 instruments. Easy user-replaceble sensor allows for quick sensor replacements if needed Comes with six membrane caps and bottle of solution

  • TruLab 1310 and 1310P pH/mV Benchtop Meters

    YSI

    Measure pH, mV (ORP) and temperature accurately in the laboratory with the YSI pH 1310 or 1310P with built-in printer. The TruLab pH 1310 benchtop meter is the ideal laboratory instrument for reliable pH/mV measurements with automatic documentation for GLP compliance. The 1310 benchtop is an…

  • MultiLab Multi-Parameter Benchtop Meters

    YSI

    The YSI MultiLab line includes the 4010-1W (single channel), 4010-2W (dual channel) and 4010-3W (three channel) instruments providing easy to use and calibrate menu-driven operation ideal for the laboratory. All MultiLab instruments can accurately measure pH, ORP, conductivity, and DO/BOD.…

  • Pro Series Dual pH/ORP/ISE Field Cables

    YSI

    The 6051010 is a 2-port (i.e. dual) pH/ORP/ISE cable that ONLY works with the YSI Professional Plus instrument. The cable has 2 ports for any combination of pH, ORP, or ISE sensors. Cables can be ordered in lengths of 1-, 4-, 10-, 20-, and 30-meters. Cables over 1-meter come with the 603062…

  • TITRONIC® 300

    YSI

    The new burette TITRONIC® 300 not only allows you to perform dosing operations quickly and easily but also accomplishes manual titrating operations without difficulty. The burette can be used with all dosing liquids, solvents and titrants. Dosing and titrating The adjustment of any…

  • TruLine ORP Electrodes

    YSI

    1198F06: TruLine ORP 50; ORP electrode no temperature, single-junction, refillable, glass shaft with 1-m cable, BNC connector. Dimensions = 120 mm length; 12 mm OD. 1198F07: TruLine ORP 51; ORP electrode no temperature, single-junction, gel electrolyte, epoxy shaft with 1-m cable, BNC…

  • BOD Lab Cable and Probe

    YSI

    The 200-BOD is a self-stirring BOD probe designed to fit into standard 300 mL BOD bottles and used with the DO200 handheld DO instrument. Uses wall power - power supply included Modular design allows for serviceability Uses convenient screw-on PE cap membranes for the fastest repsonse times

  • Pro Series Dissolved Oxygen/Temperature Field Cables

    YSI

    The 60520 dissolved oxygen cables ONLY work with the YSI Pro Plus and Pro20 instruments. Cables can be ordered in lengths of 1-, 4-, 10-, 20-, and 30-meters. Special orders up to 100-meters in 10-meter increments can also be placed. Cables over 1-meter come with the 603062 cable management…

  • YSI Conductivity Cells With Built-In Thermistors To Sense Temperature

    YSI

    Connects directly to the YSI 3100 and 3200 Calibrated to OIML recommendations 56 and 68 Cells allow automatic temperature compensation without the need of another probe. For use with 8 pin DIN connector. 3240M01 is of ABS plastic; all others are PYREX® 7740.

  • TruLine Replacement Modules

    YSI

    TruLine ammonia replacement membrane modules; ammonium, calcium, nitrate and potassium electrode replacement sensor modules.

  • ProSolo ODO/T Kits

    YSI

    The ProSolo ODO/T kit includes the digital handheld with the optical dissolved oxygen and temperature probe assembly in a soft-sided carrying case. The ODO/T probe assembly pairs with the ProSolo Handheld to form a complete sampling system. Featuring integral, digital sensors, the ODO/CT is…

  • Dissolved Oxygen Field Probe

    YSI

    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…

  • EcoSense® pH/EC1030A pH and Conductivity Pen

    YSI

    The pH/EC1030A is designed for quick, accurate results in an economical platform. The pH/EC1030A is the perfect instrument for spot sampling of pH, conductivity, total dissolved solids (TDS), salinity and temperature in applications such as wastewater, surface water, aquaculture, hydroponics,…

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