Pentair 520272 Air/Water/Solar Temperature Sensor with 20-Feet Cable Replacement Pool/Spa Automation Control Systems and Pump

Perfect fit, great dwal

Works fine but takes a bit of work to install. The cord needs to be brought into the pool computer from the pool water system. Not too happy with the price ($50) though. I it ever fails, I'm going to try to replace it with an aftermarket sensor.

I was having trouble understanding why bathers were complaining about the water temp when the Pentair system noted a balmy 83 degrees. It wasn't until the system started announcing a steady rise in temperature in rather cool air conditions over a couple of days when I became suspicious and tested with a digital meat thermometer. Sure enough, the systems was off by 8 degrees on the high side. I compensated by calling for an additional 8 degrees (91) and kicked the preverbal can until I got around to it. The next day the system was suggesting 104 degrees which was well out of the range of can kicking.I tried multiple local pool stores to find an in-stock replacement, to no avail. One could be ordered for delivery in 3-10 days, and ranged from $35-$85.The immediate problem was getting the water temperature up. I took a gamble and swapped out the air temperature probe for the existing water temp probe and, sure enough, the probes are the same and it allowed the system to call for heat from the heater. I did have to adjust the SETTINGS within the controller to calibrate the old air sensor to the current water temperature.Like an idiot, I failed to take a picture of the existing wiring before removing both probes, so when I went to wire the Air probe to the water side of the control board, I couldn't remember which wire went where. The inside of the door to the system had a schematics diagram and luckily it noted that two probe leads are interchangeable; it didn't matter which way they were wired - I definitely caught a break. Even though I was back up and running, I wanted to replace the probe because I didn't know how much longer the air probe had in it.This probe came in 2 days and was a breeze to install. Yes, it did require the existing hole in the pipe to be drilled out to 3/8" of an inch. No, it was not the least bit difficult. I guess I would argue that if drilling out the hole gives you hesitation, you may want to leave this repair to a pool guy because it is the easiest part of the process.Overall I am quite happy with the product. I did end up ordering another probe because with the hole being expanded, the OEM probe will be too small. If something should happen to this product (like it goes out of production), I don't want to have to start replacing piping.

A very cost effective way to replace my malfunctioning temp sensor on my Gulfstream Heat pump pool heater. Factory sensor is located in the inner housing of the heat pump and would have required removal of the top of the heater enclosure and hanging upside down like a Bat to unscrew the old sensor. I simply left the old sensor in place and drilled a 3/8 inch hole in the top of the 2 inch inlet pipe on the outside of the heater just before it entered the enclosure. I routed the wires thru the bottom of the enclosure and into the control panel. This took about 10 minutes from start to finish. Water temp readings were spot on with a comparison to a digital thermometer that I use to check my steaks when I am grilling. More importantly, the pool heater now springs to life and functions as it should.

When it said my pool water was 160 degrees, we knew something was wrong. Instead of completely rewiring this, we just replaced and spliced into the old cable near the box- low voltage and easy to protect from weather and worked perfect. As soon as pump turned back on temp was real (matched thermometer in pool) and... heater would now start for the spa when we wanted- which was our first clue that something was wrong as it wouldn't go on with the water that 'hot' even though it was cold.

My original temperature sensor that was around 10 years old was starting to read a water temperature that I knew was at least 20 degrees off so I purchased this sensor that was original to the one I had and it was easy to install. Be prepared to make a trip to the auto parts store for a replacement hose clamp because if it’s original it will in all likelihood be in poor condition. The sensor has an “O” ring attached to it and I just added a thin film of pool and spa lube to it and when I started the pump there were no leaks.

Installation was easy and only took 10 minutes or so. The air temp sensor started acting up after our last freeze so I ordered these. They are not manufactured by Jandy though. They are manufactured by Phoenix. I checked several vendors online as well as my local Leslie's pool supply and most were $35-$65 each. These are significantly cheaper in price and so far they work correctly.

After getting 18 years out of the original air temperature sensor, it started reporting the outside air at 150 degrees. I bought one of these to replace it. A couple years later, the water temperature sensor (also this same part) went out, so I purchased another one of these. I figure for that kind of lifetime it's worth getting the original brand rather than a knockoff.If you are troubleshooting a sensor failure, first try swapping the air and the water temperature sensor leads in your equipment panel (if you have both). If the problem moves, you know it is just the sensor that needs to be replaced. If both go out at the same time, your control board probably needs maintenance.If you are using this as a water sensor, don't forget to lubricate the included O-ring before inserting the sensor probe into the pipe. I neglected that step the first time and water sprayed everywhere, despite tightening the hose clamp firmly. The hose clamp in not included, so be sure to save your existing clamp.