Installing a TDS Meter on your R12 RO unit

Install the larger tee in the 1/2" Inlet tube at the site of the circle. Install the smaller tee in the 3/8" Outlet tube at the site of the circle.

Attach the body of the monitor at the site on the frame that shows "TDS Monitor."

Insert the 1/4" monitor prongs into their respective fittings.

Turn on the power. Then monitor the incoming, then the outgoing (permeate) water.

The monitor will turn itself off automatically to save the battery.