Product Overview The Hayward pH Sensor with 10' Cable W3PRO1510 is a genuine Hayward replacement pH probe designed for accurate pool and spa water chemistry monitoring. This sensor continuously measures pH levels and sends readings to compatible Hayward chemical control systems, helping maintain balanced water, improve swimmer comfort, and support consistent sanitizer performance. This model is commonly listed as W3PRO15-10 / PRO15-10 and includes a 10 ft. cable. It is designed for Hayward CAT controllers and compatible Hayward commercial chemical automation systems. Public listings identify the UPC as 610377389822 and describe the part as a heavy-duty pH sensor with a 10 ft. cable for Hayward CAT controllers. Ideal For Commercial pool chemical automationPool and spa pH monitoringHayward CAT controller systemsHayward HCC automated chemical controller systemsReplacement of worn or aging pH probesFacilities needing real-time pH monitoringService professionals maintaining automated chemical feed systems Key Features Genuine Hayward Replacement Sensor The W3PRO1510 is a factory-original Hayward pH sensor designed for compatible Hayward chemical controller systems. 10 ft. Cable Included This model includes a 10 ft. cable, allowing installation flexibility between the sensor location and compatible controller. pH Monitoring The sensor measures pool or spa pH levels and transmits readings to the controller for monitoring and chemical feed decisions. Compatible with CAT Controllers Retail specifications list this part for Hayward CAT controllers and identify it as a replacement pH probe for those systems. Compatible with HCC Controllers Distributor listings describe this Professional Series pH probe as suitable for CAT or HCC automated chemical controllers. Heavy-Duty Sensor Construction Listings describe this as a heavy-duty sensor / probe intended for chemical controller use. Durable NPT Body Poolweb describes the Professional Series pH probe as having a durable injection-molded NPT body designed for chemical resistance. Helps Maintain Balanced Water Accurate pH readings help the automation system support proper water balance, swimmer comfort, and equipment protection. Benefits The Hayward W3PRO1510 is a practical replacement part for pool operators and service professionals who rely on automated chemical control. A properly functioning pH sensor helps the controller monitor water balance accurately, which can reduce guesswork, improve chemical consistency, and help prevent overfeeding or underfeeding acid or base correction chemicals. With its 10 ft. cable, genuine Hayward fit, and compatibility with CAT / HCC-style chemical controllers, this pH probe is a dependable choice for maintaining automated pool and spa water chemistry systems. Specifications Specification Details Brand Hayward Model W3PRO1510 Alternate Model W3PRO15-10 / PRO15-10 SKU W3PRO1510 UPC / Barcode 610377389822 Product Type pH sensor probe Sensor Type pH Cable Length 10 ft. Application Pool and spa chemical automation Compatible Controllers Hayward CAT controllers; Hayward HCC automated chemical controllers Body Style NPT-style probe body Construction Heavy-duty chemical-resistant probe body Package Quantity 1 sensor Installation Type Sensor probe installation into compatible flow cell / sensor manifold ORP Sensor No Temperature Sensor No Professional Installation Recommended Yes Warranty Manufacturer warranty applies What’s Included Hayward W3PRO1510 pH sensor probe10 ft. sensor cable Chemical controller is not included.Flow cell, sensor manifold, fittings, and calibration solutions are not included unless supplied separately by the seller.Professional installation and calibration by a qualified pool professional is recommended. Customer-Facing Q&A What does this sensor measure? This sensor measures pH in pool or spa water. How long is the cable? This model includes a 10 ft. cable. Is this an ORP sensor? No. This is a pH sensor. ORP sensors are separate parts. What systems is this compatible with? This sensor is commonly listed for Hayward CAT controllers and Hayward HCC automated chemical controllers. Is this a genuine Hayward part? Yes. This is listed as a genuine Hayward replacement pH probe. Does this include the controller? No. This listing is for the pH sensor probe and cable only. Does this include calibration solution? No. Calibration solution is not included unless bundled separately by the seller. Does this sensor need calibration? Yes. pH sensors should be calibrated according to the controller and sensor instructions for accurate readings. Is this for residential or commercial pools? This sensor is commonly used with Hayward commercial chemical automation systems, but compatibility depends on the installed controller and plumbing setup. What is the UPC / barcode? The UPC / barcode is 610377389822.
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