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Why didn't I have one when I started!? By TriggerThis on 4/13/14TriggerThis would recommend this product to a friendA must have!
I didn't have one, almost crashed my tank putting 30TDS top off water in it every day because I didn't know my DI was exhauseted.
Don't have to worry any more
Literally takes 6 seconds to install
WORKS WELL UNTIL CALIBRATION IS NEEDED By NONE on 4/10/14NONE would recommend this product to a friendGOOD LUCK CALIBRATING FOR THE AVERAGE JOE. AT THIS POINT IMO IT BECOMES DISPOSABLE. FOR THE PRICE AND GETTING SEVERAL YEARS USE IT IS WHAT IT IS.
put a few on your rodi system By Chicago on 3/25/14Chicago would recommend this product to a friendI love these things. I use two of them on my system. Use for
1. supply water going in
2. water after the pre filters and after carbon
3. after the reverse membrane but beofre the di cartridges
4 last one after the di cartridges to let me know how the final water is.
so easy and great to monitor.
This works really well By Bob on 3/4/14Bob would recommend this product to a friendHooked this up to my older RO unit and was able to see how well the membrane is performing. Its especially amazing to see the difference between the input and output.
Great addition By Manfred on 2/18/14Manfred would recommend this product to a friendAnother way to determine when filter changes are needed. You can see the sediment filter and when it gets dirty. You can see the color change in the DI filter but this meter goes beyond that and confirms numerically what you see actually. Just another RODI precautionary measure.
Great Feedback for RO Membrane By Steve on 2/13/14Steve would recommend this product to a friendI had no idea whether my RO membrane was ready for replacement before installing this TDS meter. It allows you to monitor the performance of the membrane.
Works great By reddog on 2/11/14reddog would recommend this product to a friendThese seem to work very well. One came on my BRS 5-stage RODI system. It had one line of display missing so they sent me a new one asap. It's great to be able to see your incoming TDS and outgoing TDS on the RODI system.
Must have for a rodi system By nicholas on 2/9/14nicholas would recommend this product to a friendI have one of these on my rodi unit now that i thought was reading incorrect but come to find out i got a build a unit from BRS and my first rodi unit didn't work correctly and now it reads right where it should. this definatly saved my tanks from utter distruction
would recommend this product to a friend By Josh on 1/12/14Josh would recommend this product to a friendI have been thinking about getting one of these for a long time. I wish I hadn't waited. Takes guesswork out of filter changes. So easy to install.
works everyitme By Jason on 1/12/14Jason would recommend this product to a friendeasy to use and easy install and I know right when to change my filters.
Highly recommended. By tvoydan on 1/4/14tvoydan would recommend this product to a friendEasy to install. easy to use. Can't believe I waited so lang to install one on my RO unit.
Happy By Aquaticfan on 12/19/13Aquaticfan would recommend this product to a friendVery happy with this TDS meter. I love how easy it is and works great. Lets me know the numbers coming in and going out. Must buy.
Pressure gauges, flush kits and TDS meters are eas ...
This video demonstrates the different TDS meters a ...
Ask a Question About 'Dual Inline TDS Meter DM-1 - HM Digital'
Previously Asked Questions
The DM-1 Dual Inline TDS Meter from HM Digital is one of the most important reverse osmosis accessories. This tool monitors the TDS of your reverse osmosis system in two places and lets you know exactly how the system is performing.
BulkReefSupply.com suggests installing the dual TDS meter post membrane and post DI stage. These two readings will notify you when it's time to change the RO membrane and DI resin. This unit features a digital display and comes with two 1/4" John Guest Quick Connect Tee's. As with all HM-Digital products, the DM-1 comes factory calibrated.
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