http://cgi.ebay.com/Digital-pH-Meter-Tester-LCD-Monitor-2-Buffer-Solutions_W0QQitemZ290396787488QQcmdZViewItemQQptZAU_Pool_Spa_Beach?hash=item439cff5320
Very inexpensive compared to a lot of other ph meters.. anyone us them?
What are some other good digital ph meters that aren't too expensive?
Very inexpensive compared to a lot of other ph meters.. anyone us them?
What are some other good digital ph meters that aren't too expensive?