View Full Version : New PH Probe question

01/31/2017, 06:41 PM
What is the real difference between the std grade and lab grade probes? And is the double junction worth getting? Does it truly double the life of the probe?

02/01/2017, 09:45 AM
I've used both and the lab grade probes do seem to "drift" less, at least in my experience. You also need to calibrate them MUCH less frequently.

I know a lot of folks start with the neptune standard probes and use the BRS lab grade probes when they need a replacement but I haven't needed to replace mine yet so I can't speak directly to their performance, but I haven't heard any issues.

02/01/2017, 09:57 AM
There new dual junction are supposedly better.

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