xbravoz Well-Known Member Jan 28, 2008 #1 what is the device that measures PPM called....trying to price it on the net
email468 Well-Known Member Jan 28, 2008 #2 they are usually called PPM (parts per million) or EC (electrical conductivity) meters which measure TDS (total dissolved solids/salts).
they are usually called PPM (parts per million) or EC (electrical conductivity) meters which measure TDS (total dissolved solids/salts).
