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 2774 DryLoc pH/ORP Electrode features the patented DryLoc connector for reliable, moisture-resistant connections in high-humidity environments. Designed for use with Signet 2750 or 2751 sensor electronics, it measures 0 to 14 pH or ORP with a gel-filled double-junction reference for extended service life and minimal maintenance in industrial applications.
$652.38$735.00
Available for Purchase
Subject to factory lead times
The GF Signet 2774 DryLoc pH/ORP Electrode features the patented DryLoc connector for reliable, moisture-resistant connections in high-humidity environments. Designed for use with Signet 2750 or 2751 sensor electronics, it measures 0 to 14 pH or ORP with a gel-filled double-junction reference for extended service life and minimal maintenance in industrial applications.
$862.73$972.00
Available for Purchase
Subject to factory lead times
The GF Signet 2774 DryLoc pH/ORP Electrode features the patented DryLoc connector for reliable, moisture-resistant connections in high-humidity environments. Designed for use with Signet 2750 or 2751 sensor electronics, it measures 0 to 14 pH or ORP with a gel-filled double-junction reference for extended service life and minimal maintenance in industrial applications.
$862.73$972.00
Available for Purchase
Subject to factory lead times
The GF Signet 2774 DryLoc pH/ORP Electrode features the patented DryLoc connector for reliable, moisture-resistant connections in high-humidity environments. Designed for use with Signet 2750 or 2751 sensor electronics, it measures 0 to 14 pH or ORP with a gel-filled double-junction reference for extended service life and minimal maintenance in industrial applications.
$876.93$988.00
Available for Purchase
Subject to factory lead times
The GF Signet 3-2775 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.
$683.44$770.00
Available for Purchase
Subject to factory lead times
The GF Signet 3-2776 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.
$631.96$712.00
Available for Purchase
Subject to factory lead times
The GF Signet 3-2776-1 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.
$585.81$660.00
Available for Purchase
Subject to factory lead times
The GF Signet 3-2777 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.
$618.65$697.00
Available for Purchase
Subject to factory lead times
The GF Signet 3-2818-1 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.
$647.94$730.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections.
$566.28$638.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-1C) is configured with 1m integral cable.
$655.93$739.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-1P-025) is configured with 1-inch pipe size, 25 mm insertion/cable.
$596.46$672.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-1P-050) is configured with 1-inch pipe size, 50 mm insertion/cable.
$679.89$766.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-1P-100) is configured with 1-inch pipe size, 100 mm insertion.
$824.57$929.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-1S-050) is configured with 50 mm insertion/cable.
$1,304.75$1,470.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-S1) is configured with socket connection, channel 1.
$1,192.91$1,344.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-S1-HTHP) is configured with socket connection, channel 1, high temperature/high pressure.
$1,938.48$2,184.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections.
$1,301.20$1,466.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-S2) is configured with socket connection, channel 2.
$1,409.48$1,588.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections.
$1,498.24$1,688.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-T1) is configured with threaded connection, 4-20 mA.
$1,668.66$1,880.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections.
$1,759.19$1,982.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-T2) is configured with threaded connection, voltage.
$1,887.89$2,127.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections.
$1,976.65$2,227.00
Available for Purchase
Subject to factory lead times
The GF Signet 2774 DryLoc pH/ORP Electrode features the patented DryLoc connector for reliable, moisture-resistant connections in high-humidity environments. Designed for use with Signet 2750 or 2751 sensor electronics, it measures 0 to 14 pH or ORP with a gel-filled double-junction reference for extended service life and minimal maintenance in industrial applications.
$652.38$735.00
Available for Purchase
Subject to factory lead times
The GF Signet 2774 DryLoc pH/ORP Electrode features the patented DryLoc connector for reliable, moisture-resistant connections in high-humidity environments. Designed for use with Signet 2750 or 2751 sensor electronics, it measures 0 to 14 pH or ORP with a gel-filled double-junction reference for extended service life and minimal maintenance in industrial applications.
$862.73$972.00
Available for Purchase
Subject to factory lead times
The GF Signet 2774 DryLoc pH/ORP Electrode features the patented DryLoc connector for reliable, moisture-resistant connections in high-humidity environments. Designed for use with Signet 2750 or 2751 sensor electronics, it measures 0 to 14 pH or ORP with a gel-filled double-junction reference for extended service life and minimal maintenance in industrial applications.
$862.73$972.00
Available for Purchase
Subject to factory lead times
The GF Signet 2774 DryLoc pH/ORP Electrode features the patented DryLoc connector for reliable, moisture-resistant connections in high-humidity environments. Designed for use with Signet 2750 or 2751 sensor electronics, it measures 0 to 14 pH or ORP with a gel-filled double-junction reference for extended service life and minimal maintenance in industrial applications.
$876.93$988.00
Available for Purchase
Subject to factory lead times
The GF Signet 3-2775 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.
$683.44$770.00
Available for Purchase
Subject to factory lead times
The GF Signet 3-2776 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.
$631.96$712.00
Available for Purchase
Subject to factory lead times
The GF Signet 3-2776-1 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.
$585.81$660.00
Available for Purchase
Subject to factory lead times
The GF Signet 3-2777 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.
$618.65$697.00
Available for Purchase
Subject to factory lead times
The GF Signet 3-2818-1 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.
$647.94$730.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections.
$566.28$638.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-1C) is configured with 1m integral cable.
$655.93$739.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-1P-025) is configured with 1-inch pipe size, 25 mm insertion/cable.
$596.46$672.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-1P-050) is configured with 1-inch pipe size, 50 mm insertion/cable.
$679.89$766.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-1P-100) is configured with 1-inch pipe size, 100 mm insertion.
$824.57$929.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-1S-050) is configured with 50 mm insertion/cable.
$1,304.75$1,470.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-S1) is configured with socket connection, channel 1.
$1,192.91$1,344.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-S1-HTHP) is configured with socket connection, channel 1, high temperature/high pressure.
$1,938.48$2,184.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections.
$1,301.20$1,466.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-S2) is configured with socket connection, channel 2.
$1,409.48$1,588.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections.
$1,498.24$1,688.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-T1) is configured with threaded connection, 4-20 mA.
$1,668.66$1,880.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections.
$1,759.19$1,982.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections. This specific variant (3-2819-T2) is configured with threaded connection, voltage.
$1,887.89$2,127.00
Available for Purchase
Subject to factory lead times
The GF Signet 2819 Conductivity/Resistivity Electrode is a 2-electrode contacting-style sensor for measuring liquid conductivity or resistivity in industrial process applications. With a cell constant of 0.1 cm⁻¹, it is optimized for low conductivity and high purity water measurement (0.1 µS/cm to 20 mS/cm). Available in PVDF or PP body materials with NPT or DIN process connections.
$1,976.65$2,227.00
Available for Purchase
Subject to factory lead times