Flow, pH & Conductivity Meters, Transmitters & Controllers

Centro offers a wide range of flow, pH, and conductivity meters, transmitters, and controllers to meet the demands of various industrial and commercial applications. From monitoring flow rates and maintaining chemical balance for fluid quality and consistency, our solutions are engineered for precision, reliability, and seamless integration. We provide products such as magnetic and ultrasonic flow meters, pH controllers, and conductivity transmitters designed to optimize performance in industries like water treatment, food and beverage, chemical processing, and pharmaceuticals.


Whether you need accurate measurements, durable equipment, or easy system integration, Centro has the expertise and products to support your operations. Explore our selection online or contact our team to find the right solution for your application and ensure peak system efficiency.

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The GF Signet P31536 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$94.09$106.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P31542 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$24.86$28.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P31542-3 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$24.86$28.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P31671-1 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$151.78$171.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P31671-1C is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with 1m integral cable.

$73.67$83.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P31934 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$24.86$28.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-1421-025-0 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with 25 mm insertion/cable.

$618.65$697.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-1611-100-0 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with 100 mm insertion.

$900.01$1,014.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-H0 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with HART output.

$562.73$634.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-P0 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with polypropylene body, open-collector output.

$565.39$637.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-P0-050 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with polypropylene body, open-collector output, 50 mm insertion/cable.

$598.23$674.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-P0-075 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with polypropylene body, open-collector output, 75 mm insertion.

$644.39$726.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-P0-100 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with polypropylene body, open-collector output, 100 mm insertion.

$763.32$860.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-P1 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with polypropylene body, 4-20 mA output.

$585.81$660.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-P2 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with polypropylene body, voltage output.

$631.96$712.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-P3 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with polypropylene body, S3L output.

$877.82$989.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-P4 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$971.91$1,095.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-P5 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$1,043.80$1,176.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-S0 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with S3L digital output.

$628.41$708.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-T0 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with threaded connection, open-collector.

$960.37$1,082.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-T1 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with threaded connection, 4-20 mA.

$1,045.57$1,178.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-V0 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with PVDF body, open-collector output.

$1,004.75$1,132.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-V1 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with PVDF body, 4-20 mA output.

$1,041.14$1,173.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-V2 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$1,082.85$1,220.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P31536 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$94.09$106.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P31542 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$24.86$28.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P31542-3 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$24.86$28.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P31671-1 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$151.78$171.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P31671-1C is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with 1m integral cable.

$73.67$83.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P31934 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$24.86$28.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-1421-025-0 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with 25 mm insertion/cable.

$618.65$697.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-1611-100-0 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with 100 mm insertion.

$900.01$1,014.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-H0 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with HART output.

$562.73$634.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-P0 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with polypropylene body, open-collector output.

$565.39$637.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-P0-050 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with polypropylene body, open-collector output, 50 mm insertion/cable.

$598.23$674.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-P0-075 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with polypropylene body, open-collector output, 75 mm insertion.

$644.39$726.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-P0-100 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with polypropylene body, open-collector output, 100 mm insertion.

$763.32$860.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-P1 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with polypropylene body, 4-20 mA output.

$585.81$660.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-P2 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with polypropylene body, voltage output.

$631.96$712.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-P3 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with polypropylene body, S3L output.

$877.82$989.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-P4 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$971.91$1,095.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-P5 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$1,043.80$1,176.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-S0 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with S3L digital output.

$628.41$708.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-T0 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with threaded connection, open-collector.

$960.37$1,082.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-T1 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with threaded connection, 4-20 mA.

$1,045.57$1,178.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-V0 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with PVDF body, open-collector output.

$1,004.75$1,132.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-V1 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability. Configured with PVDF body, 4-20 mA output.

$1,041.14$1,173.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet P51530-V2 is a Flow Sensor (Special) for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable flow measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$1,082.85$1,220.00

You save 11%
Available for Purchase

Subject to factory lead times