Temperature Sensor Replacement for Jandy®/Zodiac® Systems by Optimum Pool Technologies

Save $29.98
Optimum Pool TechnologiesSKU: TEMPS-J-10K

Sale price$19.99 Regular price$49.97


The aftermarket temperature sensor from Optimum is a direct replacement for Jandy® AquaLink® temp sensor, but can also be used with Polaris® and Zodiac® control systems.


  • Compatibility: Jandy®, Polaris®, and Zodiac® control systems
  • Replaces: Jandy’s AquaLink RS® Temperature Sensor P/N 7790 (R3002900), 7784, 7786, and 7791
  • Includes 10K thermistor, 20-foot cord

To use as a water temperature sensor: Install the sensor in a 3/8-inch hole in the pipe between the filter pump and filter.

To use as an air temperature sensor: Mount the sensor outside the power center out of direct sunlight and away from heat sources.

To use as a solar temperature sensor: Fasten the sensor adjacent to solar panels.


  • Manufacturer: Optimum
  • Model: TEMPS-J-10K
  • Shipping weight: 1 lb.

Watch our video to see how to properly replace the temperature sensor in Jandy systems.

Statements of compatibility here are 100% guaranteed by Pool Guy Supply, Inc. and are not attributable to or made by Hayward® or any other original equipment manufacturer (OEM) of products sold on this website.

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Customer Reviews

Based on 7 reviews
Joseph Madden
Great Alternate Product That Saved Me Hundreds!!

Hey everybody! I wanted you to know that the temperature sensor you sent me worked perfectly and I was able to replace the old one so that I could enjoy an evening in the HEATED spa with my family on my birthday. What a great gift you gave me and this at a price which was 1/5th of what Jandy would have charged me. Your shipping from Ca to Fl was quick and when I called you for some technical guidance on the install, you were happy to help. Now I’m back up and running. You guys ROCK! Please feel free to post this up on your site in the reviews. Thanks for the help...

Stephen Takacs

Great replacement part. Just as advertised.

Frank Cooley
Water Temp Guage

Works great and easy to install. Need a tiny straight screw driver to install wires on panel.

The first one I had

The first one I had went bad within 3 months but they sent me a replacement when I talked to them. Very fast and nice customer service. I will definitely continue to use this company for all my pool needs in the future! Definitely a great customer service experience. Thanks guys!

Paul in Bowie, Texas
Fast service! The sensors fit

Fast service! The sensors fit perfectly with plenty of lead wire for my application. Installation of the Air and Water Sensors was a breeze ! Everything works perfectly ! Just another satisfied customer !!

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