Re: Conductivity meter vs. TDS meter ** From: Brian Ahmer ** Sent: Wednesday, January 09, 2002 10:14 PM > As far as I understand, they are the exact same thing EXCEPT that they > have different scales. All the meters do is read conductivity and then > multiply by a constant ... This is correct. A useful page for conversions and calibrations: http://www.eutechinst.com/techtips/tech-tips12.htm Also, keep in mind that the measurement of "TDS" as expressed in ppm NaCl provides easy evaluation of osmotic shifts... -Y- David A. Youngker nestor10@mindspring.com ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com.