YSI is part of Xylem Analytics and a leading provider of water measurement solutions.

Xylem Analytics’ global brands have been leaders in the water and laboratory instrumentation market for decades,and are relied upon every day across more than 150 countries. Working in true partnership with our clients, we listen, learn and adapt to individual needs, offering deep application expertise built upon our long history of innovation in instruments and services. Our solutions for analysis, measurement and monitoring help enable many of today’s environmental monitoring, modern laboratories and industrial processes, and provide our customers the trusted and high performing solutions they need to succeed.

Xylem Analytics is part of Xylem Inc., a global company focused on solving the world’s most challenging and fundamental water issues. As accurate analysis is crucial to the water industry, Xylem Analytics taps its diverse product brands for leadership in that field and beyond, providing the best laboratory and field monitoring instrumentation across a wide variety of industries.

YSI IQ SensorNet is a network of online controllers and sensors designed for process monitoring and control at wastewater treatment plants. IQ SensorNet continuously monitors water quality throughout the wastewater treatment process, from influent through the effluent, increasing operational efficiency, lowering operating costs and improving performance ensuring your water resource recovery facility is within compliance and under budget

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The YSI IQ SensorNet 282 and 284 controllers are a modular system for a complete sensor network. This powerful, reliable system continuously measures your water quality parameters anywhere in a facility for process control. Immediate benefits include better network visibility and management, early detection of network failures, improved compliance with regulatory targets and cost savings (energy, pump/blower maintenance, labor).

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IQ SensorNet FDO

Dissolved Oxygen Probes 

 IQ SensorNet NiCaVis  


IQ SensorNet AmmoLyt

Plus Sensors 

All sensors:

• Ultrasonic cleaning with UltraClean™ technology prevents fouling

and lowers maintenance requirements

• Built-in airholes for added air cleaning in high fouling applications

• No reagents required resulting in reduced operational costs and less impact on the environment

• Durable, long-lasting materials - titanium and PEEK will hold up in the toughest conditions

• Immediate detection of organic loads without reagents

• 2-year sensor warranty

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The YSI IQ SensorNet 2020 3G controller is a modular water quality system for a complete sensor network ideal for various application needs. This is a powerful system to continuously measure water quality parameters anywhere in a facility for process control.

Immediate benefits include better network visibility and management, early detection of network failures, improved compliance with regulatory targets and cost savings (energy, pump/blower maintenance, labor).

The system is capable of measuring:

  • Dissolved oxygen (optical or electrochemical)

  • pH

  • ORP

  • Conductivity

  • Orthophosphate

  • Temperature

  • Turbidity - ultrasonic cleaning

  • TSS (total suspended solids) - ultrasonic cleaning

  • Ammonium

  • Nitrate

  • Nitrite – ultrasonic cleaning

  • NOx – ultrasonic cleaning

  • Potassium

  • Chloride

  • UVT-254 – ultrasonic cleaning

  • COD (chemical oxygen demand) - ultrasonic cleaning

  • TOC (total organic carbon) - ultrasonic cleaning

  • DOC (dissolved organic carbon share of TOC) - ultrasonic cleaning

  • SAC (spectral absorption coefficient) - ultrasonic cleaning

  • BOD (biochemical oxygen demand) - ultrasonic cleaning

  • Sludge Level

  • Salinity

  • Specific conductance

 The entire system accommodates up to 20 sensors for the above listed parameters in any combination. Add sensors at any time and at any location or exchange them with ease. Simply change sensors (parameters) and start getting data for the new parameter.

The IQ SensorNet terminal has an easy-to-read digital display. The terminal can be kept at a fixed location or easily disconnected and added to a module for a simple mobile terminal solution. The terminal can just be pulled off its location and moved to a new location with tools in a matter of seconds.

The terminal features include:

  • Centralized power supply along the entire network

  • 2-wire cable provides power and data transfer

  • Easily select relays and analog outputs

  • Digital outputs also available with Profibus, Modbus, or Profinet

  • Connection via IQ WEB CONNECT app

  • Wireless connection via radio transmission

  • Easily add measuring points along the network

  • Multi-functional USB interface with fast data exchange (electronic-key function allows USB stick to function as a key)

  • Programmable access permission

  • LED status update

  • System redundancy for backup power and control (if two terminals are used, the second one would take over automatically if the first one fails or loses power, etc.)

The YSI IQ SensorNet will provide continuous data and help improve process efficiency while saving money on energy costs, maintenance, and labor.

Building a system is easy: you will need a terminal(s), module(s), cable(s) and sensor(s). All you need to do is determine which parameters you want to measure and where. After that, the IQ SensorNet system takes care of the work.

Only YSI can offer you:

  • 3-year warranty

  • Ultrasonic cleaning

  • Lightning protection

  • Modular expansion from 1 to 20 sensors; ability to extend network with up to 3 additional modules

  • One 120V power supply

  • Up to 48 output channels (mA/relays) are possible

  • One cable for power AND communications

  • Factory calibrated optical DO cap

  • USB interface (can also be used as a security feature)

  • System redundancy for backup control