View Full Version : ORP probe - shelf life and probe grades

04/27/2017, 06:31 PM

Today I received a Neptune Lab Grade ORP probe from an online retailer. The probe is labeled Jan 16 and there is NO fluid in the plastic cap.

Do the probes have a shelf life and should I return the probe if it is completely dry?

Also, what is the difference between a Double Junction Lab Grade, Lab Grade and Standard probe?

Thanks for your time,


04/27/2017, 06:37 PM
And is there an easy read to understand what value I get from measuring this? It's the one probe I have no idea what to do with the readings provided.
Thank you in advance for suggesting i use the search button.

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