The ProOBOD® self-stirring optical BOD probes are designed to fit into standard 300 mL BOD bottles with an international version also available for use with other tapers. EPA approved for wastewater compliance reporting of BOD and CBOD. The ProOBOD is designed for use with the YSI ProODO…

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…

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…

Self-stirring BOD probe. Simplifies BOD measurements Modular design allows for serviceability Uses convenient screw-on cap membranes Stirrer ensures a representative sample The ProBOD self-stirring BOD probes are designed to fit into standard 300 mL BOD bottles with various…

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.…

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…

Enhance your lab’s accuracy with YSI TITRONIC® 500 Manual Titrator. These titrators feature a motor-driven piston burette for precise titrations, solution preparation, and dosing of dispensable liquids. Adjustable dosing rate, filling rate and adjustable filling between each dose…

Includes bottle of NaCl electrolyte, 1 sanding disc, and 6 screw-on cap membranes. 1.25 Mil PE, Polyethylene membranes. Yellow cap. Response Time (T95 - from 0 to 100%) = 8 seconds Flow Dependence After 4 Minutes = 25% Required Flow Rate = 6 inches/ second

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 pH100A measures pH, mV/ORP…

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…

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…

The EcoSense ® pH10A pen-style instrument provides an ultimate feature set over similar competitive models. The pH10A features an easy-to-use graphic interface, simple one-hand operation, memory, and low cost of ownership over the life of the product. The easy, user-replaceable electrode…

The 6051030 pH/ORP/ISE and Conductivity combination cables ONLY work with the YSI Pro Plus and Pro1030 instruments. Cables can be ordered in lengths of 1-, 4-, 10-, 20-, and 30-meters. Cables over 1-meter come with the 603062 cable management kit. Cables include integrated temperature and…

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…

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…

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).

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

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

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…

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

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 …

1198F14: ScienceLine Temp 135; temperature sensor, stainless steel, 1 banana plug, NTC 30 kOhm. Dimensions = 120 mm length; 4 mm OD. 1198F15: ScienceLine Temp 136; temperature sensor, glass, 1 banana plug, NTC 30 kOhm. Dimensions = 120 mm length; 6 mm OD.

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…

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

Electrolyte solution in DURAN® bottles.

YSI 5914 screw-on cap dissolved oxygen membranes for 2002 Galvanic sensors. Used with Galvanic probes.  Includes bottle of NaCl electrolyte, 1 sanding disc, and 6 screw-on cap membranes. 2.00 Mil PE, Polyethylene membranes (Blue cap). Convenient scew-on cap membranes make membrane changes…

Field oxygen probe with cable assembly. Compatible with the YSI 52 and 58 instruments. A 5906 Cap Membrane Kit is included (1 Mil FEP Fluoropolymer film membranes).

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…

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…

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…

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.