A TDS monitor, like the HM Digital® DM-1 TDS Monitor, is a vital part of any RO/DI system.

It plays a major role in ensuring that your system is performing at it’s best and continues to do so. It will alert you to when it is time to replace RO membranes and DI resin as well as ensure that the production water you are placing into your RO storage container is of the best quality possible with a 0 ppm TDS reading. Without a monitor, it is all just guesswork.