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 automation
Pool and spa pH monitoring
Hayward CAT controller systems
Hayward HCC automated chemical controller systems
Replacement of worn or aging pH probes
Facilities needing real-time pH monitoring
Service 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

What’s Included

Hayward W3PRO1510 pH sensor probe
10 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.