The innovative Myron L® RO-CHECK (U.S. Patent # 4,762,611) reliably monitors total dissolved solids 24 hours a day. A quick glance
at the display assures RO users of their water TDS quality. Should membrane failure or other problems cause TDS to rise above the set point, the words “CHECK SYSTEM” flash in the LCD. This silent indicator alerts, rather than alarms, the user that service may be required.
Easily installed on most popular faucets, the RO-CHECK features 16 set point choices and is ideal for monitoring water of almost any TDS quality.