Online Sensors and Controllers

pH-sensors

A Diverse Range of Online Sensors for Accurate and Reliable Measurement

Online sensors from Hach® offer cutting-edge technology to provide you with reliable real-time data on water quality, allowing for proactive management and rapid response to potential issues. From monitoring key parameters such as pH, dissolved oxygen (DO), and conductivity to detecting contaminants, our sensors offer unparalleled accuracy and reliability.

Hach's online sensors ensure regulatory compliance and operational efficiency. With user-friendly interfaces and seamless integration into existing systems, managing water quality has never been easier.

Featured Sensors

pH Online Sensor

Online pH Sensors

Increase measurement accuracy and eliminate sensor ground loops with Hach's range of differential pH instruments solutions.

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Differential ORP Sensors

Online ORP Sensors

Online process ORP sensors provide greater reliability, resulting in less downtime and maintenance.


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Dissolved Oxygen Sensors

Dissolved Oxygen Sensors

Hach offers low maintenance, ready to use sensors for accurate measurement in a variety of ultrapure, pure and non-pure applications including drinking water, power plants and beverage production.



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Conductivity Sensors

Conductivity Sensors

Our conductivity sensors use innovative technology to eliminate the polarization and electrode coating problems common in harsh, industrial environments. Sensors feature plug-and-play technology to avoid complicated set-up procedures.

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Hydrogen Sulfide Sensors

Hydrogen Sulfide Sensors

Whether in water or air, the GS1440 and GS1440EX hydrogen sulfide sensors provide the direct H2S measurement you need to optimize your H2S treatment process and proactively control H2S before it causes issues.

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Suspended Solids Sensors

Suspended Solids Sensors

Digital process probes from Hach accurately measure both suspended solids and turbidity across a variety of applications.






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SC4500 Service Application

Online Controllers

Hach’s digital controllers provide seamless integration with a wide range of process sensors, enabling efficient water quality monitoring. With flexible communication options and the ability to manage multiple parameters, they support both simple and complex system needs. Models like the SC4500, SC1000, and SC200 offer scalable solutions for municipal and industrial applications.

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SC4500 Digital Controller product image

SC4500 Digital Controller

Analog and digital connectivity options, including Profinet and ethernet/IP with up to two sensor-connection ports. Works with 30+ digital or analog sensors for up to 17 different parameters.

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SC4500 Sensor Compatibility

SC4500 Sensor Packages

SC1500 Digital Controller product image

SC1500 Digital Controller

Option to connect 2, 4 or 6 different sensors. Allows digital connection to the Claros™ Water Intelligence System and Mobile Sensor Management (MSM) software.

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SC1000 Universal Controller product image

SC1000 Universal Controller

Modular transmitter system can be networked together to accommodate up to 32 digital sensors or analyzers. Available with GSM/GPRS, Ethernet and TCP/IP capability.

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SC200 Controller project image

SC200 Controller

The legacy SC200 Controller has been replaced by the SC4500 Controller. For select features, however, (e.g., Modbus 485, internal analog modules, etc.), the SC200 is appropriate for certain users.

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