mpdegn
Well-Known Member
Saw this on ebay
http://cgi.ebay.com/HM-Digital-TDS-EZ-Meter-Tester-Water-ppm-Purity-Filter_W0QQitemZ280349439863QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item414620f777
Can I use that for hydroponics too?
http://cgi.ebay.com/HM-Digital-TDS-EZ-Meter-Tester-Water-ppm-Purity-Filter_W0QQitemZ280349439863QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item414620f777
Can I use that for hydroponics too?