Hayward W3PRO15-10 pH sensor with 10 ft cable for CAT controllersHayward pH Sensor with 10 ft Cable, W3PRO15-10 In stock$42900 Web Price
Hayward W3PRO15-10 pH sensor with 10 ft cable for CAT controllers
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Hayward pH Sensor with 10 ft Cable, W3PRO15-10

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Quick overview

  • Factory original The Hayward replacement pH sensor, part W3PRO15-10.
  • Replaces PRO15-10 Supersedes the earlier PRO15-10 sensor part number.
  • Cable included Supplied with a 10 ft cable, so no separate lead is needed.
  • For CAT controllers Built for Hayward CAT chemical automation controllers.
  • Heavy duty build Listed by Hayward as a heavy duty sensor for continuous service.
  • Accurate pH control A drifting or dead probe is the usual reason a controller doses wrong, and a fresh sensor restores the reading.
Full description and specifications ↓

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Product details

This is the factory original Hayward pH sensor, part W3PRO15-10, supplied with a 10 ft cable. It replaces the earlier PRO15-10 and is the sensor Hayward specifies for its CAT controllers.

What the sensor does

A chemical controller only doses as well as it reads. The pH probe is the input for the acid or base side of that loop, so when it drifts, coats or dies, the controller keeps working from a number that is no longer true. Replacing the probe is the first step when readings and hand tests stop agreeing.

Service life

pH probes are wear items. Hayward lists this one as a heavy duty sensor, but every probe eventually loses its response and will not hold calibration. Keeping a spare on hand avoids running the controller blind while one is on order.

Specifications
Brand Hayward
Manufacturer part number W3PRO15-10
UPC 0610377389822
Replaces PRO15-10
Type pH sensor
Cable length 10 ft
Fits Hayward CAT controllers
Construction Heavy duty sensor
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

What does this sensor work with?
Hayward CAT controllers. It is the factory original Hayward pH sensor for those units.
Is the cable included?
Yes. The sensor comes with a 10 ft cable.
I have a PRO15-10. Is this the right part?
Yes. W3PRO15-10 replaces PRO15-10.
How do I know the probe has failed?
If the controller reports a pH that does not match a hand test, or the reading will not hold calibration, the sensor is usually the part at fault.
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