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110galreef
11/16/2012, 09:03 AM
I don't see directions in the guide?
aquamanic
11/16/2012, 10:29 AM
See page 4:

http://new.neptunesystems.com/wp-content/uploads/2012/09/PM2-20104031_WEB.pdf
110galreef
11/16/2012, 12:20 PM
Thanks, looks like i need the 53.0 mS/cm calibration fluid!!