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 2870 Chlorine Sensor measures free chlorine concentration in drinking water treatment and distribution systems. Using an amperometric measurement principle, it provides accurate readings from 0 to 5 ppm (mg/L) with automatic pH and temperature compensation. Available in 115 VAC or 125 VAC powered versions, it outputs S3L digital signal to Signet transmitters.
$449.12$506.00
Available for Purchase
Subject to factory lead times
The GF Signet 2870 Chlorine Sensor measures free chlorine concentration in drinking water treatment and distribution systems. Using an amperometric measurement principle, it provides accurate readings from 0 to 5 ppm (mg/L) with automatic pH and temperature compensation. Available in 115 VAC or 125 VAC powered versions, it outputs S3L digital signal to Signet transmitters.
$507.70$572.00
Available for Purchase
Subject to factory lead times
The GF Signet 2870 Chlorine Sensor measures free chlorine concentration in drinking water treatment and distribution systems. Using an amperometric measurement principle, it provides accurate readings from 0 to 5 ppm (mg/L) with automatic pH and temperature compensation. Available in 115 VAC or 125 VAC powered versions, it outputs S3L digital signal to Signet transmitters.
$86.10$97.00
Available for Purchase
Subject to factory lead times
The GF Signet 2870 Chlorine Sensor measures free chlorine concentration in drinking water treatment and distribution systems. Using an amperometric measurement principle, it provides accurate readings from 0 to 5 ppm (mg/L) with automatic pH and temperature compensation. Available in 115 VAC or 125 VAC powered versions, it outputs S3L digital signal to Signet transmitters.
$300.89$339.00
Available for Purchase
Subject to factory lead times
The GF Signet 2870 Chlorine Sensor measures free chlorine concentration in drinking water treatment and distribution systems. Using an amperometric measurement principle, it provides accurate readings from 0 to 5 ppm (mg/L) with automatic pH and temperature compensation. Available in 115 VAC or 125 VAC powered versions, it outputs S3L digital signal to Signet transmitters.
$99.41$112.00
Available for Purchase
Subject to factory lead times
The GF Signet 2872 Chlorine Sensor provides amperometric measurement of free chlorine from 0 to 5 ppm for water treatment applications. Similar to the 2870, it features automatic pH and temperature compensation and S3L digital output, available in multiple voltage configurations.
$414.50$467.00
Available for Purchase
Subject to factory lead times
The GF Signet 2872 Chlorine Sensor provides amperometric measurement of free chlorine from 0 to 5 ppm for water treatment applications. Similar to the 2870, it features automatic pH and temperature compensation and S3L digital output, available in multiple voltage configurations.
$468.65$528.00
Available for Purchase
Subject to factory lead times
The GF Signet 2872 Chlorine Sensor provides amperometric measurement of free chlorine from 0 to 5 ppm for water treatment applications. Similar to the 2870, it features automatic pH and temperature compensation and S3L digital output, available in multiple voltage configurations.
$426.04$480.00
Available for Purchase
Subject to factory lead times
The GF Signet 2872 Chlorine Sensor provides amperometric measurement of free chlorine from 0 to 5 ppm for water treatment applications. Similar to the 2870, it features automatic pH and temperature compensation and S3L digital output, available in multiple voltage configurations.
$481.07$542.00
Available for Purchase
Subject to factory lead times
The GF Signet 2873 Chlorine Sensor measures total chlorine in water treatment processes using amperometric technology. It covers 0 to 5 ppm total chlorine with automatic compensation and S3L digital communication to Signet transmitters.
$446.46$503.00
Available for Purchase
Subject to factory lead times
The GF Signet 2873 Chlorine Sensor measures total chlorine in water treatment processes using amperometric technology. It covers 0 to 5 ppm total chlorine with automatic compensation and S3L digital communication to Signet transmitters.
$468.65$528.00
Available for Purchase
Subject to factory lead times
The GF Signet 2873 Chlorine Sensor measures total chlorine in water treatment processes using amperometric technology. It covers 0 to 5 ppm total chlorine with automatic compensation and S3L digital communication to Signet transmitters.
$458.88$517.00
Available for Purchase
Subject to factory lead times
The GF Signet 2873 Chlorine Sensor measures total chlorine in water treatment processes using amperometric technology. It covers 0 to 5 ppm total chlorine with automatic compensation and S3L digital communication to Signet transmitters.
$481.07$542.00
Available for Purchase
Subject to factory lead times
The GF Signet 3-2874-A515 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.
$583.15$657.00
Available for Purchase
Subject to factory lead times
The GF Signet 3-2874-A525 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.
$594.68$670.00
Available for Purchase
Subject to factory lead times
The GF Signet 3519 Flow Wet-Tap Valve enables insertion and removal of Signet 2536, 515, 525, or 2540 flow sensors under full line pressure without process shutdown. The ball valve design provides a safe, reliable means for hot-tap sensor installation and maintenance. Available in PVC, PP, and PVDF materials for various chemical compatibility requirements.
$906.22$1,021.00
Available for Purchase
Subject to factory lead times
The GF Signet 3519 Flow Wet-Tap Valve enables insertion and removal of Signet 2536, 515, 525, or 2540 flow sensors under full line pressure without process shutdown. The ball valve design provides a safe, reliable means for hot-tap sensor installation and maintenance. Available in PVC, PP, and PVDF materials for various chemical compatibility requirements. This specific variant (3-3519/2536-P3) is configured with polypropylene body, S3L output.
$1,763.63$1,987.00
Available for Purchase
Subject to factory lead times
The GF Signet 3519 Flow Wet-Tap Valve enables insertion and removal of Signet 2536, 515, 525, or 2540 flow sensors under full line pressure without process shutdown. The ball valve design provides a safe, reliable means for hot-tap sensor installation and maintenance. Available in PVC, PP, and PVDF materials for various chemical compatibility requirements.
$1,841.73$2,075.00
Available for Purchase
Subject to factory lead times
The GF Signet 3519 Flow Wet-Tap Valve enables insertion and removal of Signet 2536, 515, 525, or 2540 flow sensors under full line pressure without process shutdown. The ball valve design provides a safe, reliable means for hot-tap sensor installation and maintenance. Available in PVC, PP, and PVDF materials for various chemical compatibility requirements.
$1,920.73$2,164.00
Available for Purchase
Subject to factory lead times
The GF Signet 3519 Flow Wet-Tap Valve enables insertion and removal of Signet 2536, 515, 525, or 2540 flow sensors under full line pressure without process shutdown. The ball valve design provides a safe, reliable means for hot-tap sensor installation and maintenance. Available in PVC, PP, and PVDF materials for various chemical compatibility requirements. This specific variant (3-3519/515-P3) is configured with polypropylene body, S3L output.
$1,576.35$1,776.00
Available for Purchase
Subject to factory lead times
The GF Signet 3519 Flow Wet-Tap Valve enables insertion and removal of Signet 2536, 515, 525, or 2540 flow sensors under full line pressure without process shutdown. The ball valve design provides a safe, reliable means for hot-tap sensor installation and maintenance. Available in PVC, PP, and PVDF materials for various chemical compatibility requirements.
$1,653.57$1,863.00
Available for Purchase
Subject to factory lead times
The GF Signet 3519 Flow Wet-Tap Valve enables insertion and removal of Signet 2536, 515, 525, or 2540 flow sensors under full line pressure without process shutdown. The ball valve design provides a safe, reliable means for hot-tap sensor installation and maintenance. Available in PVC, PP, and PVDF materials for various chemical compatibility requirements.
$1,733.45$1,953.00
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.
$1,353.56$1,525.00
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.
$1,299.42$1,525.00
Available for Purchase
Subject to factory lead times
The GF Signet 2870 Chlorine Sensor measures free chlorine concentration in drinking water treatment and distribution systems. Using an amperometric measurement principle, it provides accurate readings from 0 to 5 ppm (mg/L) with automatic pH and temperature compensation. Available in 115 VAC or 125 VAC powered versions, it outputs S3L digital signal to Signet transmitters.
$449.12$506.00
Available for Purchase
Subject to factory lead times
The GF Signet 2870 Chlorine Sensor measures free chlorine concentration in drinking water treatment and distribution systems. Using an amperometric measurement principle, it provides accurate readings from 0 to 5 ppm (mg/L) with automatic pH and temperature compensation. Available in 115 VAC or 125 VAC powered versions, it outputs S3L digital signal to Signet transmitters.
$507.70$572.00
Available for Purchase
Subject to factory lead times
The GF Signet 2870 Chlorine Sensor measures free chlorine concentration in drinking water treatment and distribution systems. Using an amperometric measurement principle, it provides accurate readings from 0 to 5 ppm (mg/L) with automatic pH and temperature compensation. Available in 115 VAC or 125 VAC powered versions, it outputs S3L digital signal to Signet transmitters.
$86.10$97.00
Available for Purchase
Subject to factory lead times
The GF Signet 2870 Chlorine Sensor measures free chlorine concentration in drinking water treatment and distribution systems. Using an amperometric measurement principle, it provides accurate readings from 0 to 5 ppm (mg/L) with automatic pH and temperature compensation. Available in 115 VAC or 125 VAC powered versions, it outputs S3L digital signal to Signet transmitters.
$300.89$339.00
Available for Purchase
Subject to factory lead times
The GF Signet 2870 Chlorine Sensor measures free chlorine concentration in drinking water treatment and distribution systems. Using an amperometric measurement principle, it provides accurate readings from 0 to 5 ppm (mg/L) with automatic pH and temperature compensation. Available in 115 VAC or 125 VAC powered versions, it outputs S3L digital signal to Signet transmitters.
$99.41$112.00
Available for Purchase
Subject to factory lead times
The GF Signet 2872 Chlorine Sensor provides amperometric measurement of free chlorine from 0 to 5 ppm for water treatment applications. Similar to the 2870, it features automatic pH and temperature compensation and S3L digital output, available in multiple voltage configurations.
$414.50$467.00
Available for Purchase
Subject to factory lead times
The GF Signet 2872 Chlorine Sensor provides amperometric measurement of free chlorine from 0 to 5 ppm for water treatment applications. Similar to the 2870, it features automatic pH and temperature compensation and S3L digital output, available in multiple voltage configurations.
$468.65$528.00
Available for Purchase
Subject to factory lead times
The GF Signet 2872 Chlorine Sensor provides amperometric measurement of free chlorine from 0 to 5 ppm for water treatment applications. Similar to the 2870, it features automatic pH and temperature compensation and S3L digital output, available in multiple voltage configurations.
$426.04$480.00
Available for Purchase
Subject to factory lead times
The GF Signet 2872 Chlorine Sensor provides amperometric measurement of free chlorine from 0 to 5 ppm for water treatment applications. Similar to the 2870, it features automatic pH and temperature compensation and S3L digital output, available in multiple voltage configurations.
$481.07$542.00
Available for Purchase
Subject to factory lead times
The GF Signet 2873 Chlorine Sensor measures total chlorine in water treatment processes using amperometric technology. It covers 0 to 5 ppm total chlorine with automatic compensation and S3L digital communication to Signet transmitters.
$446.46$503.00
Available for Purchase
Subject to factory lead times
The GF Signet 2873 Chlorine Sensor measures total chlorine in water treatment processes using amperometric technology. It covers 0 to 5 ppm total chlorine with automatic compensation and S3L digital communication to Signet transmitters.
$468.65$528.00
Available for Purchase
Subject to factory lead times
The GF Signet 2873 Chlorine Sensor measures total chlorine in water treatment processes using amperometric technology. It covers 0 to 5 ppm total chlorine with automatic compensation and S3L digital communication to Signet transmitters.
$458.88$517.00
Available for Purchase
Subject to factory lead times
The GF Signet 2873 Chlorine Sensor measures total chlorine in water treatment processes using amperometric technology. It covers 0 to 5 ppm total chlorine with automatic compensation and S3L digital communication to Signet transmitters.
$481.07$542.00
Available for Purchase
Subject to factory lead times
The GF Signet 3-2874-A515 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.
$583.15$657.00
Available for Purchase
Subject to factory lead times
The GF Signet 3-2874-A525 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.
$594.68$670.00
Available for Purchase
Subject to factory lead times
The GF Signet 3519 Flow Wet-Tap Valve enables insertion and removal of Signet 2536, 515, 525, or 2540 flow sensors under full line pressure without process shutdown. The ball valve design provides a safe, reliable means for hot-tap sensor installation and maintenance. Available in PVC, PP, and PVDF materials for various chemical compatibility requirements.
$906.22$1,021.00
Available for Purchase
Subject to factory lead times
The GF Signet 3519 Flow Wet-Tap Valve enables insertion and removal of Signet 2536, 515, 525, or 2540 flow sensors under full line pressure without process shutdown. The ball valve design provides a safe, reliable means for hot-tap sensor installation and maintenance. Available in PVC, PP, and PVDF materials for various chemical compatibility requirements. This specific variant (3-3519/2536-P3) is configured with polypropylene body, S3L output.
$1,763.63$1,987.00
Available for Purchase
Subject to factory lead times
The GF Signet 3519 Flow Wet-Tap Valve enables insertion and removal of Signet 2536, 515, 525, or 2540 flow sensors under full line pressure without process shutdown. The ball valve design provides a safe, reliable means for hot-tap sensor installation and maintenance. Available in PVC, PP, and PVDF materials for various chemical compatibility requirements.
$1,841.73$2,075.00
Available for Purchase
Subject to factory lead times
The GF Signet 3519 Flow Wet-Tap Valve enables insertion and removal of Signet 2536, 515, 525, or 2540 flow sensors under full line pressure without process shutdown. The ball valve design provides a safe, reliable means for hot-tap sensor installation and maintenance. Available in PVC, PP, and PVDF materials for various chemical compatibility requirements.
$1,920.73$2,164.00
Available for Purchase
Subject to factory lead times
The GF Signet 3519 Flow Wet-Tap Valve enables insertion and removal of Signet 2536, 515, 525, or 2540 flow sensors under full line pressure without process shutdown. The ball valve design provides a safe, reliable means for hot-tap sensor installation and maintenance. Available in PVC, PP, and PVDF materials for various chemical compatibility requirements. This specific variant (3-3519/515-P3) is configured with polypropylene body, S3L output.
$1,576.35$1,776.00
Available for Purchase
Subject to factory lead times
The GF Signet 3519 Flow Wet-Tap Valve enables insertion and removal of Signet 2536, 515, 525, or 2540 flow sensors under full line pressure without process shutdown. The ball valve design provides a safe, reliable means for hot-tap sensor installation and maintenance. Available in PVC, PP, and PVDF materials for various chemical compatibility requirements.
$1,653.57$1,863.00
Available for Purchase
Subject to factory lead times
The GF Signet 3519 Flow Wet-Tap Valve enables insertion and removal of Signet 2536, 515, 525, or 2540 flow sensors under full line pressure without process shutdown. The ball valve design provides a safe, reliable means for hot-tap sensor installation and maintenance. Available in PVC, PP, and PVDF materials for various chemical compatibility requirements.
$1,733.45$1,953.00
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.
$1,353.56$1,525.00
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.
$1,299.42$1,525.00
Available for Purchase
Subject to factory lead times