Apex temp prob accuracy

[Paul Thomas]

I'm wondering what the acceptable temp variance is for the Apex temp probe. Mine seems to drift off by almost a full degree in less than 24 hours of calibration. Since my heaters are tied to this probe Im a bit concerned about the lack of accuracy. It is several years old so is a replacement reasonable? Are the alternative (better) probes that will work with Apex controller?

 

[blaxsun]

When you say your heaters are tied to the Neptune probe, how do you have them configured? Yes, it's possible it may be due for a replacement - but some variation during the day is also to be expected.

 

[jda]

This seems about right... few years and then replace. I don't know of a better probe with an Apex, but it probably doesn't matter too much if you are only using it for monitoring. If you are controlling heaters, then I guess that you have to keep a good eye on it, but something more reliable like a Ranco might be worth looking into.

The Apex probes are not super expensive and you probably get what you pay for at about thirty dollars.