HM Digital

Dual Inline TDS Meter DM-1 - HM Digital

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Why does BRS recommend this?

Using a RODI system without a TDS meter is like driving a car without a speedometer and gas gauge.  At some point you will end up in trouble.  With RODI systems it is TDS that you will want to monitor for performance and filter quality.  By using a dual TDS meter it will allow you to see your TDS readings in two places.  We will usually suggest putting one probe before the DI stage and one after the DI stage to show what your RO is producing for water quality and then how your DI is performing by removing all remaining TDS from the final product water.


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.


BRS 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" GA Murdock Quick Connect Tee's with double o-rings to ensure a proper seal. As with all HM-Digital products, the DM-1 comes factory calibrated.


Replacement Battery Type - LR44G


TDS Meter Installation Instructions

More Information
Product Name Dual Inline TDS Meter DM-1 - HM Digital
SKU 200031
UPC 891144000052
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