The Hanna PWT [Trem sells the PWT for the same as factory price plus shipping. www.silvergen.com ] and the HM Digital COM-100 [ www.silverpuppy.com , about $15 less than factory and free shipping] are the leaders.
They are both very good conductivity meters. I have several of each and they're all pretty much in agreement with each other...very close.
The HM Digital TDS3 is better than most of the Hanna TDS meters, but TDS meters in general are only ballpark meters.
ALL PPM/TDS meters sorta suck for this purpose, but aren't "completely" useless. If any two identical TDS meters read within 2 PPM of each other in the same 10 PPM sample, and a 15 PPM sample, that would be an accident. Different TDS meter readings in different samples is no basis at all for a disagreement over the telephone. [Arguing? Forget it. ] A good source for TDS meters [such as they are] is www.sunstoneherbals.com [James Allison]
Check ebay as well. ode
Does this conductivity meter have a name? or a brand? I have seen the Hanna TDS meters online. I want to put it on my Christmas list. Kathryn _______________________________________________________ You can't really use time alone to predict PPM. Only slightly purer water can make a really big difference to get to the same stopping point Best bet is to get a conductivity meter Next best , a PPM/TDS meter Or even just an volt meter [multi meter ] "Some" way to tell where you are in the process. ode ____________________________________________________________________________________ Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: [email protected] Address Off-Topic messages to: [email protected] The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour <[email protected]> -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.409 / Virus Database: 268.14.2/528 - Release Date: 11/10/2006 -- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.1.409 / Virus Database: 268.14.2/528 - Release Date: 11/10/2006
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