How long do apex pH probes last

[Jyetman]

I purchased my full classic Apex in March 2014 so today my lab grade pH probe is 3 years old. Just finished calibrating it after a vinegar cleaning. It gave me no problems calibrating and is still reading properly. How long do these probes last?

 

[ca1ore]

I've had the regular probe go 3 years before drifting; imagine the lab probe would do somewhat better.

 

[Jyetman]

I purchased a pH pinpoint BNC replacement probe during black friday thinking I'd be soon replacing the Apex probe. How long can this new pinpoint last sitting on a shelf waiting?

 

[slief]

Just replaced one of my Neptune Lab Grade pH probe after 3.5 yrs. Not bad IMO.

 

[LQT]

My lab grade probe from 2014 is still in service. Time for my annual calibration soon.

 

[Reefable]

I just ordered one after using it for 3.5-4 yrs


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