Easy user-replaceble sensor allows for quick sensor replacements, if needed. No tools necessary. Measure pH and ORP (oxidation reduction potential), or redox, quickly and easily with the 1003 combination sensor. The 605103 pH/ORP Sensor can be used with the YSI Professional Plus Multiparameter…

Automatic Titrator for the volumetric KF titration The TitroLine® 7500 KF is the universalist for the volumetric Karl Fischer titration with a wide operating range of a few ppm - 100% water content. The addition of the solvent and the extraction of the titrated sample are carried out by…

The ProODO™ handheld meter provides durability for the measurement of optical, luminescent-based dissolved oxygen for any field application. The ProODO is rated to IP-67 standards even without the battery cover on. In-house testing procedures also include 1M drop tests from all angles to…

General purpose plastic electrode combines pH, reference and temperature. A rugged bulb, detachable bulb protector and replaceable junction (4136L60) provide for long life.

The EC300M offers convenient measurement of conductivity, specific conductance, salinity, total dissolved solids, and temperature in many field applications. Compared to the EcoSense® EC300A the EC300M features extended memory and simple data transfer with a micro-USB port. Features of…

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…

The YSI pH/temperature field probe and cable is compatible for use with EcoSense pH100A, pH100 meter models. It is made of sturdy material which ensures durability and long lasting usage.

The YSI pH buffer solution is suitable for use in research facilities and chemical laboratories to conduct wide range of experiments. It is available in sturdy bottle that endures heavy and rigorous usage.

The TitroLine® 7750 is the universal automatic titrator for both potentiometric titration and volumetric KF titration. The TitroLine® 7750 combines the features of the potentiometric titrator TitroLine® 7000 and the volumetric Karl Fischer titrator TitroLine® 7500. General…

Easy to use, rugged and reliable, the YSI Pro1020 provides everything you need in a handheld instrument for the measurement of dissolved oxygen, temperature and either pH or ORP. User-replaceable sensors and cables, 50 data set memory, and convenient calibration routine makes it user friendly. A…

Buffer for Glucose, L-Lactate, Dextrose, Sucrose, Glutamate, Glutamine, Choline, Xylose. 8 envelopes. Reconstitute to make a total of 4 liters.

Easy user-replaceble sensor allows for quick sensor replacements, if needed.  No tools necessary.  Six-month sensor warranty. Measure chloride quickly and easily with the 1005 sensor. Note - for use in freshwater applications only. The 605105 Chloride ISE Sensor can…

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…

The Quatro is a 4-port cable for use with the Professional Plus instrument. The Quatro is a true field cable with MS (military spec) connectors, two year warranty, and rugged, weighted probe guard. Create a powerful multiparameter sampling instrument. Measure conductivity/temperature,…

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…

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

Smart sensor retains calibration in the probe User-replaceable, low-maintenance sensor with +1-year life 2-year warranty; reliable and serviceable, design reduces cost-of-ownership and reduces down-time Probe body tapered to fit into a standard 300 mL BOD bottle and international versions …

YSI single-junction replacement pH sensor for the pH10 pen-style instrument. Includes a cover cap as well The pH10 comes with this sensor with purchase 6-month manufacturer’s warranty from date of purchase Most small testers are thrown away after the sensor goes…

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…

Enhance your lab’s accuracy with YSI TITRONIC® 300 Manual Titrator. These titrators feature a motor-driven piston burette for precise titrations and dosing of dispensable liquids. Adjustable dosing rate, filling rate and adjustable filling between each dose step makes these units…

The YSI foam fitted carrying case is compatible for use with EcoSense pH100, DO200 and EC300 meter models. It is made of sturdy material which ensures durability and long lasting usage.

Swap one smart sensor for another with the ProSwap digital water quality meter! Featuring built-in temperature and optional depth sensors, ProSwap can transform into whatever you need: a purpose-built turbidity meter or a high-accuracy optical DO meter; a spot sampling pH meter or a profiling…

Tube set, complete set, 3 parts with all connections, with titration tip and holder for all TITRONIC® 500 exchangeable units.

The YSI 160 mm titration tip is suitable for use in research facilities and chemical laboratories to conduct wide range of experiments. It is made of sturdy material which ensures durability and long lasting usage.

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…

Dissolved oxygen and temperature field probe and cable assembly. Comes with a 5908 Cap Membrane Kit (1.25 Mil PE membranes).

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 EC300A simultaneously…

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…

ORP Probe for Professional Plus Handheld Multiparameter Meters. For lab-grade and field applications Easy user-replaceble sensor allows for quick sensor replacements if needed Measure ORP (oxidation reduction potential), or redox, quickly and easily with the 1002 sensor

Tripod Clamp used with a variety of our handheld instruments. This small 4654 tripod supports the instrument at a convenient viewing angle Ideal in the lab or any other level surface

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,…

Automatic Titrator for the coulometric KF-Titration The TitroLine® 7500 KF trace is a compact, easy-to-use coulometric titrator for water determination according to Karl Fischer (KF) with a typical operating range of 1 ppm - 5% water. General features High visibility,…