Jandy vs Pentair temperature sensor

[garykli]

Hi,

I'm almost done putting together my automation components. The only thing missing is the temperature sensor. I'm going to be using an aqualink rs8 to control my pool & spa. So, my questions are as follows:

I've heard that you can use Pentair sensor instead of a jandy one with the RS controller, can anyone confirm if that's true? Pentair appears to be about half the cost of Jandy...

Why does aqualink require 2 sensors? I understand that one is water & the other is air, but why do we care about air temp?

Thanks!

 

[Pool Clown]

Air temp allows for the use of freeze protection.

 

[Bama Rambler]

It looks like they're both 10k ntc thermistors so they should interchange without a problem.

 

[Isaac-1]

What Dave said may be true, depending on use I have noted that some pool equipment uses 10K NTC 4% per degree C thermistor, and others use 10K NTC 4.4% per degree C thermistors. Since both of these types is referenced to 10K ohms at 77 degrees F they will read very close at typical swim temperature range (often within their stated manufacturing tolerances), however when being used for the freeze detection role, they will be about 4 or 5 degrees F off when measuring temperatures in the mid 30's.

Ike