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 3719 pH/ORP Wet-Tap Assembly allows installation and removal of Signet pH/ORP electrodes under full line pressure without process interruption. The PVDF ball valve design with stem guide enables hot-tap operation in pipe sizes from DN50 to DN900 (2 to 36 in.). It is compatible with standard Signet electrode configurations.

$1,416.58$1,596.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet 3719 pH/ORP Wet-Tap Assembly allows installation and removal of Signet pH/ORP electrodes under full line pressure without process interruption. The PVDF ball valve design with stem guide enables hot-tap operation in pipe sizes from DN50 to DN900 (2 to 36 in.). It is compatible with standard Signet electrode configurations.

$1,416.58$1,596.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet 3719 pH/ORP Wet-Tap Assembly allows installation and removal of Signet pH/ORP electrodes under full line pressure without process interruption. The PVDF ball valve design with stem guide enables hot-tap operation in pipe sizes from DN50 to DN900 (2 to 36 in.). It is compatible with standard Signet electrode configurations.

$310.66$350.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet 3719 pH/ORP Wet-Tap Assembly allows installation and removal of Signet pH/ORP electrodes under full line pressure without process interruption. The PVDF ball valve design with stem guide enables hot-tap operation in pipe sizes from DN50 to DN900 (2 to 36 in.). It is compatible with standard Signet electrode configurations.

$74.56$84.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet 3-4150-24V is a Sensor/Accessory for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable various measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.
Requires Quote
Available for Purchase

Subject to factory lead times

The GF Signet 3-4150-DL is a Sensor/Accessory for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable various measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.
Requires Quote
Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$5,612.86

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$5,781.86

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$5,612.86

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$5,781.86

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$5,612.86

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$5,781.86

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$194.00

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$417.99

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$2,627.94

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$410.99

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$325.00

Available for Purchase

Subject to factory lead times

The GF Signet 3-4632-12 is a Sensor/Accessory for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable various measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$4,683.89

Available for Purchase

Subject to factory lead times

The GF Signet 3-4632-13 is a Sensor/Accessory for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable various measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$5,612.86

Available for Purchase

Subject to factory lead times

The GF Signet 3-5000.395 is a Accessory/Hardware for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable accessory measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$81.66$92.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet 3-5000.399 is a Accessory/Hardware for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable accessory measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$57.70$65.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet 3-5000.598 is a Accessory/Hardware for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable accessory measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$55.03$62.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet 3-8050 is a Sensor/Instrument for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable process measurement measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$94.98$107.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet 3-8050-1 is a Sensor/Instrument for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable process measurement measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$152.67$172.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet 3719 pH/ORP Wet-Tap Assembly allows installation and removal of Signet pH/ORP electrodes under full line pressure without process interruption. The PVDF ball valve design with stem guide enables hot-tap operation in pipe sizes from DN50 to DN900 (2 to 36 in.). It is compatible with standard Signet electrode configurations.

$1,416.58$1,596.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet 3719 pH/ORP Wet-Tap Assembly allows installation and removal of Signet pH/ORP electrodes under full line pressure without process interruption. The PVDF ball valve design with stem guide enables hot-tap operation in pipe sizes from DN50 to DN900 (2 to 36 in.). It is compatible with standard Signet electrode configurations.

$1,416.58$1,596.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet 3719 pH/ORP Wet-Tap Assembly allows installation and removal of Signet pH/ORP electrodes under full line pressure without process interruption. The PVDF ball valve design with stem guide enables hot-tap operation in pipe sizes from DN50 to DN900 (2 to 36 in.). It is compatible with standard Signet electrode configurations.

$310.66$350.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet 3719 pH/ORP Wet-Tap Assembly allows installation and removal of Signet pH/ORP electrodes under full line pressure without process interruption. The PVDF ball valve design with stem guide enables hot-tap operation in pipe sizes from DN50 to DN900 (2 to 36 in.). It is compatible with standard Signet electrode configurations.

$74.56$84.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet 3-4150-24V is a Sensor/Accessory for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable various measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.
Requires Quote
Available for Purchase

Subject to factory lead times

The GF Signet 3-4150-DL is a Sensor/Accessory for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable various measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.
Requires Quote
Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$5,612.86

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$5,781.86

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$5,612.86

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$5,781.86

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$5,612.86

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$5,781.86

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$194.00

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$417.99

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$2,627.94

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$410.99

Available for Purchase

Subject to factory lead times

The GF Signet 4630 Temperature Sensor is an insertion RTD probe for use with Signet transmitters in industrial temperature measurement applications. It provides accurate Pt100 RTD output with digital S3L communication, available in various insertion lengths and process connection styles.

$325.00

Available for Purchase

Subject to factory lead times

The GF Signet 3-4632-12 is a Sensor/Accessory for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable various measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$4,683.89

Available for Purchase

Subject to factory lead times

The GF Signet 3-4632-13 is a Sensor/Accessory for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable various measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$5,612.86

Available for Purchase

Subject to factory lead times

The GF Signet 3-5000.395 is a Accessory/Hardware for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable accessory measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$81.66$92.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet 3-5000.399 is a Accessory/Hardware for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable accessory measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$57.70$65.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet 3-5000.598 is a Accessory/Hardware for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable accessory measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$55.03$62.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet 3-8050 is a Sensor/Instrument for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable process measurement measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$94.98$107.00

You save 11%
Available for Purchase

Subject to factory lead times

The GF Signet 3-8050-1 is a Sensor/Instrument for industrial process measurement and control. This product is designed for use in water treatment, chemical processing, and related industrial applications requiring reliable process measurement measurement. It is compatible with the GF Signet product ecosystem and meets industrial standards for performance and durability.

$152.67$172.00

You save 11%
Available for Purchase

Subject to factory lead times