pjewett
aquariablog
Looked like a good price but wondered if they are any good?
http://cgi.ebay.com/Digital-pH-TEST...142865&_trksid=p3286.c0.m14&_trkparms=72:1205|66%3A4|65%3A12|39%3A1|240%3A1318|301%3A0|293%3A1|294%3A200
Milwaukee Instruments
http://cgi.ebay.com/Digital-pH-TEST...142865&_trksid=p3286.c0.m14&_trkparms=72:1205|66%3A4|65%3A12|39%3A1|240%3A1318|301%3A0|293%3A1|294%3A200
Milwaukee Instruments