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Resistivity Sensors & Probes

In-line resistivity sensors for pure water applications

A resistivity sensor is an analytical instrument designed for monitoring resistivity in ultrapure water (UPW) used in microelectronics and semiconductor manufacturing. Resistivity is the reciprocal measure of conductivity, and quantifies how strongly a given material opposes the flow of electrical current. Resistivity analyzers provide a critical measurement to ensure that water used in electronics manufacturing does not carry ions that can damage the product during production.

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Resistivity Sensors & Probes

Advanced Measuring Circuit Enhances Accuracy

The UniCond family of resistivity sensors use an advanced, built-in measurement circuit to provide exceptional accuracy and reduce the risk of interference.

Resistivity Sensors & Probes

Maximize Yield in Semiconductor Manufacturing

METTLER TOLEDO resistivity sensors are trusted globally by semi fabs to help maintain their UPW systems and prevent water system problems that could negatively affect production yield.

Resistivity Sensors & Probes

Easy Start-Up and Commissioning

Resistivity sensors with Intelligent Sensor Management (ISM) store calibration data and other sensor information in the sensor to enable fast, plug and measure start-up.

Resistivity Sensors & Probes

Quickly Identify Out-of-Spec Performance

ISM resistivity sensors provide sensor diagnostics that identify out-of-spec performance with your resistivity sensor to improve process control.

Resistivity Sensors & Probes

Meet Water Requirements in Semiconductor Production

With constantly narrowing linewidths, METTLER TOLEDO resistivity sensors meet the challenging UPW standards with accurate and stable measurements.

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What is resistivity?

Electrical resistivity is the reciprocal of conductivity. Resistivity is the intrinsic property that quantifies how strongly a given material opposes the flow of electric current.

What is a resistivity sensor?

A resistivity sensor is an in-line sensor that provides a continuous measurement of resistivity in a water system. This measurement is often used in electronics manufacturing to monitor and control the purity of ultrapure water (UPW). METTLER TOLEDO resistivity sensors and probes are specially designed to measure accurately in low conductivity waters. 

What transmitters are METTLER TOLEDO resistivity sensors compatible with?

Resistivity sensors can integrate with any appropriate METTLER TOLEDO water transmitter that is suitable for conductivity or resistivity.  These resistivity and conductivity transmitters include the M200, M300 Water and M800 Water transmitters. The exact transmitter for your application should be selected in consultation with your local METTLER TOLEDO representative.