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 2450 Turbidity/Suspended Solids Sensor uses optical back-scatter technology to measure turbidity or suspended solids concentration from 0 to 9999 NTU or 0 to 50,000 mg/L. Designed for wastewater, industrial process water, and sludge monitoring, it outputs S3L digital signal to Signet transmitters.
$971.91$1,095.00
Available for Purchase
Subject to factory lead times
The GF Signet 2450 Turbidity/Suspended Solids Sensor uses optical back-scatter technology to measure turbidity or suspended solids concentration from 0 to 9999 NTU or 0 to 50,000 mg/L. Designed for wastewater, industrial process water, and sludge monitoring, it outputs S3L digital signal to Signet transmitters.
$922.20$1,039.00
Available for Purchase
Subject to factory lead times
The GF Signet 2450 Turbidity/Suspended Solids Sensor uses optical back-scatter technology to measure turbidity or suspended solids concentration from 0 to 9999 NTU or 0 to 50,000 mg/L. Designed for wastewater, industrial process water, and sludge monitoring, it outputs S3L digital signal to Signet transmitters. This specific variant (3-2450-7U-025) is configured with 25 mm insertion/cable.
$947.94$1,068.00
Available for Purchase
Subject to factory lead times
The GF Signet 2450 Turbidity/Suspended Solids Sensor uses optical back-scatter technology to measure turbidity or suspended solids concentration from 0 to 9999 NTU or 0 to 50,000 mg/L. Designed for wastewater, industrial process water, and sludge monitoring, it outputs S3L digital signal to Signet transmitters.
$971.91$1,095.00
Available for Purchase
Subject to factory lead times
The GF Signet 2450 Turbidity/Suspended Solids Sensor uses optical back-scatter technology to measure turbidity or suspended solids concentration from 0 to 9999 NTU or 0 to 50,000 mg/L. Designed for wastewater, industrial process water, and sludge monitoring, it outputs S3L digital signal to Signet transmitters. This specific variant (3-2450-7U-E-025) is configured with 25 mm insertion/cable.
$968.35$1,091.00
Available for Purchase
Subject to factory lead times
The GF Signet 3-2505-6C 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.
$838.77$945.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$278.71$314.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$184.62$208.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$36.40$41.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$55.03$62.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$55.03$62.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$55.03$62.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$1,314.51$1,481.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$1,314.51$1,481.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$1,314.51$1,481.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$1,314.51$1,481.00
Available for Purchase
Subject to factory lead times
The GF Signet 3-2517.567 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.
$39.95$45.00
Available for Purchase
Subject to factory lead times
The GF Signet 2536 Rotor-X Paddlewheel Flow Sensor is a highly reliable, economical insertion-type flow sensor for liquid applications. It offers a wide operating range of 0.1 to 6 m/s (0.3 to 20 ft/s) with a 66:1 turndown ratio and an open-collector pulse output. Available in polypropylene, PVDF, and PVC body materials for pipe sizes DN15 to DN900 (½ to 36 in.), it is NSF certified in the PVC version for potable water.
$633.74$714.00
Available for Purchase
Subject to factory lead times
The GF Signet 2536 Rotor-X Paddlewheel Flow Sensor is a highly reliable, economical insertion-type flow sensor for liquid applications. It offers a wide operating range of 0.1 to 6 m/s (0.3 to 20 ft/s) with a 66:1 turndown ratio and an open-collector pulse output. Available in polypropylene, PVDF, and PVC body materials for pipe sizes DN15 to DN900 (½ to 36 in.), it is NSF certified in the PVC version for potable water. This specific variant (3-2536-P0) is configured with polypropylene body, open-collector output.
$588.78$691.00
Available for Purchase
Subject to factory lead times
The GF Signet 2536 Rotor-X Paddlewheel Flow Sensor is a highly reliable, economical insertion-type flow sensor for liquid applications. It offers a wide operating range of 0.1 to 6 m/s (0.3 to 20 ft/s) with a 66:1 turndown ratio and an open-collector pulse output. Available in polypropylene, PVDF, and PVC body materials for pipe sizes DN15 to DN900 (½ to 36 in.), it is NSF certified in the PVC version for potable water. This specific variant (3-2536-P0-050) is configured with polypropylene body, open-collector output, 50 mm insertion/cable.
$712.73$803.00
Available for Purchase
Subject to factory lead times
The GF Signet 2536 Rotor-X Paddlewheel Flow Sensor is a highly reliable, economical insertion-type flow sensor for liquid applications. It offers a wide operating range of 0.1 to 6 m/s (0.3 to 20 ft/s) with a 66:1 turndown ratio and an open-collector pulse output. Available in polypropylene, PVDF, and PVC body materials for pipe sizes DN15 to DN900 (½ to 36 in.), it is NSF certified in the PVC version for potable water. This specific variant (3-2536-P0-100) is configured with polypropylene body, open-collector output, 100 mm insertion.
$858.29$967.00
Available for Purchase
Subject to factory lead times
The GF Signet 2536 Rotor-X Paddlewheel Flow Sensor is a highly reliable, economical insertion-type flow sensor for liquid applications. It offers a wide operating range of 0.1 to 6 m/s (0.3 to 20 ft/s) with a 66:1 turndown ratio and an open-collector pulse output. Available in polypropylene, PVDF, and PVC body materials for pipe sizes DN15 to DN900 (½ to 36 in.), it is NSF certified in the PVC version for potable water. This specific variant (3-2536-P1) is configured with polypropylene body, 4-20 mA output.
$649.71$732.00
Available for Purchase
Subject to factory lead times
The GF Signet 2536 Rotor-X Paddlewheel Flow Sensor is a highly reliable, economical insertion-type flow sensor for liquid applications. It offers a wide operating range of 0.1 to 6 m/s (0.3 to 20 ft/s) with a 66:1 turndown ratio and an open-collector pulse output. Available in polypropylene, PVDF, and PVC body materials for pipe sizes DN15 to DN900 (½ to 36 in.), it is NSF certified in the PVC version for potable water. This specific variant (3-2536-P2) is configured with polypropylene body, voltage output.
$677.23$763.00
Available for Purchase
Subject to factory lead times
The GF Signet 2536 Rotor-X Paddlewheel Flow Sensor is a highly reliable, economical insertion-type flow sensor for liquid applications. It offers a wide operating range of 0.1 to 6 m/s (0.3 to 20 ft/s) with a 66:1 turndown ratio and an open-collector pulse output. Available in polypropylene, PVDF, and PVC body materials for pipe sizes DN15 to DN900 (½ to 36 in.), it is NSF certified in the PVC version for potable water. This specific variant (3-2536-P3) is configured with polypropylene body, S3L output.
$936.40$1,055.00
Available for Purchase
Subject to factory lead times
The GF Signet 2450 Turbidity/Suspended Solids Sensor uses optical back-scatter technology to measure turbidity or suspended solids concentration from 0 to 9999 NTU or 0 to 50,000 mg/L. Designed for wastewater, industrial process water, and sludge monitoring, it outputs S3L digital signal to Signet transmitters.
$971.91$1,095.00
Available for Purchase
Subject to factory lead times
The GF Signet 2450 Turbidity/Suspended Solids Sensor uses optical back-scatter technology to measure turbidity or suspended solids concentration from 0 to 9999 NTU or 0 to 50,000 mg/L. Designed for wastewater, industrial process water, and sludge monitoring, it outputs S3L digital signal to Signet transmitters.
$922.20$1,039.00
Available for Purchase
Subject to factory lead times
The GF Signet 2450 Turbidity/Suspended Solids Sensor uses optical back-scatter technology to measure turbidity or suspended solids concentration from 0 to 9999 NTU or 0 to 50,000 mg/L. Designed for wastewater, industrial process water, and sludge monitoring, it outputs S3L digital signal to Signet transmitters. This specific variant (3-2450-7U-025) is configured with 25 mm insertion/cable.
$947.94$1,068.00
Available for Purchase
Subject to factory lead times
The GF Signet 2450 Turbidity/Suspended Solids Sensor uses optical back-scatter technology to measure turbidity or suspended solids concentration from 0 to 9999 NTU or 0 to 50,000 mg/L. Designed for wastewater, industrial process water, and sludge monitoring, it outputs S3L digital signal to Signet transmitters.
$971.91$1,095.00
Available for Purchase
Subject to factory lead times
The GF Signet 2450 Turbidity/Suspended Solids Sensor uses optical back-scatter technology to measure turbidity or suspended solids concentration from 0 to 9999 NTU or 0 to 50,000 mg/L. Designed for wastewater, industrial process water, and sludge monitoring, it outputs S3L digital signal to Signet transmitters. This specific variant (3-2450-7U-E-025) is configured with 25 mm insertion/cable.
$968.35$1,091.00
Available for Purchase
Subject to factory lead times
The GF Signet 3-2505-6C 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.
$838.77$945.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$278.71$314.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$184.62$208.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$36.40$41.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$55.03$62.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$55.03$62.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$55.03$62.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$1,314.51$1,481.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$1,314.51$1,481.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$1,314.51$1,481.00
Available for Purchase
Subject to factory lead times
The GF Signet 2507 Mini Flow Rotor Sensor is a compact, positive-displacement flow sensor for very low flow rates in miniature pipelines. With a tee-body inline design, it provides high-resolution pulse output for precise flow measurement in analytical instruments, chemical dosing, and laboratory equipment.
$1,314.51$1,481.00
Available for Purchase
Subject to factory lead times
The GF Signet 3-2517.567 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.
$39.95$45.00
Available for Purchase
Subject to factory lead times
The GF Signet 2536 Rotor-X Paddlewheel Flow Sensor is a highly reliable, economical insertion-type flow sensor for liquid applications. It offers a wide operating range of 0.1 to 6 m/s (0.3 to 20 ft/s) with a 66:1 turndown ratio and an open-collector pulse output. Available in polypropylene, PVDF, and PVC body materials for pipe sizes DN15 to DN900 (½ to 36 in.), it is NSF certified in the PVC version for potable water.
$633.74$714.00
Available for Purchase
Subject to factory lead times
The GF Signet 2536 Rotor-X Paddlewheel Flow Sensor is a highly reliable, economical insertion-type flow sensor for liquid applications. It offers a wide operating range of 0.1 to 6 m/s (0.3 to 20 ft/s) with a 66:1 turndown ratio and an open-collector pulse output. Available in polypropylene, PVDF, and PVC body materials for pipe sizes DN15 to DN900 (½ to 36 in.), it is NSF certified in the PVC version for potable water. This specific variant (3-2536-P0) is configured with polypropylene body, open-collector output.
$588.78$691.00
Available for Purchase
Subject to factory lead times
The GF Signet 2536 Rotor-X Paddlewheel Flow Sensor is a highly reliable, economical insertion-type flow sensor for liquid applications. It offers a wide operating range of 0.1 to 6 m/s (0.3 to 20 ft/s) with a 66:1 turndown ratio and an open-collector pulse output. Available in polypropylene, PVDF, and PVC body materials for pipe sizes DN15 to DN900 (½ to 36 in.), it is NSF certified in the PVC version for potable water. This specific variant (3-2536-P0-050) is configured with polypropylene body, open-collector output, 50 mm insertion/cable.
$712.73$803.00
Available for Purchase
Subject to factory lead times
The GF Signet 2536 Rotor-X Paddlewheel Flow Sensor is a highly reliable, economical insertion-type flow sensor for liquid applications. It offers a wide operating range of 0.1 to 6 m/s (0.3 to 20 ft/s) with a 66:1 turndown ratio and an open-collector pulse output. Available in polypropylene, PVDF, and PVC body materials for pipe sizes DN15 to DN900 (½ to 36 in.), it is NSF certified in the PVC version for potable water. This specific variant (3-2536-P0-100) is configured with polypropylene body, open-collector output, 100 mm insertion.
$858.29$967.00
Available for Purchase
Subject to factory lead times
The GF Signet 2536 Rotor-X Paddlewheel Flow Sensor is a highly reliable, economical insertion-type flow sensor for liquid applications. It offers a wide operating range of 0.1 to 6 m/s (0.3 to 20 ft/s) with a 66:1 turndown ratio and an open-collector pulse output. Available in polypropylene, PVDF, and PVC body materials for pipe sizes DN15 to DN900 (½ to 36 in.), it is NSF certified in the PVC version for potable water. This specific variant (3-2536-P1) is configured with polypropylene body, 4-20 mA output.
$649.71$732.00
Available for Purchase
Subject to factory lead times
The GF Signet 2536 Rotor-X Paddlewheel Flow Sensor is a highly reliable, economical insertion-type flow sensor for liquid applications. It offers a wide operating range of 0.1 to 6 m/s (0.3 to 20 ft/s) with a 66:1 turndown ratio and an open-collector pulse output. Available in polypropylene, PVDF, and PVC body materials for pipe sizes DN15 to DN900 (½ to 36 in.), it is NSF certified in the PVC version for potable water. This specific variant (3-2536-P2) is configured with polypropylene body, voltage output.
$677.23$763.00
Available for Purchase
Subject to factory lead times
The GF Signet 2536 Rotor-X Paddlewheel Flow Sensor is a highly reliable, economical insertion-type flow sensor for liquid applications. It offers a wide operating range of 0.1 to 6 m/s (0.3 to 20 ft/s) with a 66:1 turndown ratio and an open-collector pulse output. Available in polypropylene, PVDF, and PVC body materials for pipe sizes DN15 to DN900 (½ to 36 in.), it is NSF certified in the PVC version for potable water. This specific variant (3-2536-P3) is configured with polypropylene body, S3L output.
$936.40$1,055.00
Available for Purchase
Subject to factory lead times