How long do apex probes last in water?

[reefz]

about 9months ago I tore down one of my tanks, which had some apex probes in it. I know they will break if they sit out dry, so i put them in my other system’s sump. They’ve now been sitting there in saltwater for 9 months, and I need them for my new system. Are they still good to use?

There is a ORP probe, ph probe, salinity probe, and temp probe.

 

[blaxsun]

Maybe. Neptune indicates probes should get replaced roughly after a year, but they'll probably last longer. If you have a way to independently test for pH, salinity and temperature you can verify if they're still functioning, how accurate they are and whether they need recalibration.

 

[reefz]

I plugged them in today, and calibrated them. They seem to be working fine. Wish I could delete this forum I made haha!

 

[blaxsun]

I plugged them in today, and calibrated them. They seem to be working fine. Wish I could delete this forum I made haha!

Someone will search for it and answer a similar question.

 

[Waters]

I have been using all of my probes for almost 6 years....all still accurate