lab grade?

ninjazx777 · 03/31/2011, 07:31 AM

I have an ACIII pro and I have always bought standard ph and orp probes and I was wondering if it is worth spending the extra money for lab grade probes?

Jeremy B. · 03/31/2011, 08:29 PM

In this case it's essentially the difference between a dual junction and single junction probe. Generally, a dual junction is slightly more accurate, however that's not always the case. I personally use the standard grade probes and recalibrate once every 3-4 weeks. Calibrating once every couple of weeks is best if possible.

03/31/2011, 07:31 AM	#1
ninjazx777 Registered Member Join Date: May 2010 Location: Des Moines, Iowa Posts: 212	lab grade? I have an ACIII pro and I have always bought standard ph and orp probes and I was wondering if it is worth spending the extra money for lab grade probes?

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03/31/2011, 08:29 PM	#2
Jeremy B. Registered Member Join Date: May 2001 Location: Indianapolis, IN / Muncie, IN Posts: 8,219	In this case it's essentially the difference between a dual junction and single junction probe. Generally, a dual junction is slightly more accurate, however that's not always the case. I personally use the standard grade probes and recalibrate once every 3-4 weeks. Calibrating once every couple of weeks is best if possible.