Do any of u reefers use a pen style PH meter, rather than the real expensive one's?
what ya think about this one ?
http://cgi.ebay.ca/ws/eBayISAPI.dll?...MEWA%3AIT&rd=1
or even this one
http://cgi.ebay.ca/ws/eBayISAPI.dll?...MEWA%3AIT&rd=1
Last edited by Railskinner; 06-12-2006 at 12:05 AM.
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