Lab grade vs. standard probes vs. BRS probes

[aleonn]

I'm looking at the product descriptions, but can't figure out the differences between the lab grade and standard pH probes. Does the lab grade pH probe last longer or measure pH more accurately? Also, is the BRS pH probe comparable to the standard Neptune probe? TIA!

 

[aquamanic]

The lab grade tend to last longer and respond quicker to changes. I don't think they're necessarily more accurate.