My Cart (0 items)
Click on image to zoom
View full size image

More Views

Single Inline TDS meter SM-1
HM Digital

SKU: 200032


  • Good value By Tony K on 12/6/2014

    Easy hook-up, automatically shuts off after a few minutes, appears accurate but I have not checked it against any controlled samples.
  • worth every penny By StevieC on 3/30/2014

    TDS meter sm-1 working like it should nice product for the money.
  • does what it needs to do By mrpergo on 3/29/2014

    it takes like 5 min to install and does what it is suppose to do.
  • Setup easy and works well By Will on 3/10/2014

    Velcro allowed easy attachment to filter system. Quick connect T fit hoses and sensor perfectly. Instructions were well written and clear. Very happy with item.
  • a wise investment By robert98 on 1/16/2014

    this product does exactly what it was made to do, easy hook-up perfect for any r/o system.
  • Great convenience but leak problem By Steve D on 7/10/2013

    This is a great item to have, but it has a rigid plastic 1/4-inch probe section that fits into the supplied T-fitting. But it has a slow leak between the rigid plastic insert and the quick-lock fitting which caused me to have to put a ball valve in my input water supply just to turn it off between uses so that my otherwise dripless RO system and connectors wouldn't drip, drip, drip day and night.
  • water quality By Billy on 5/30/2013

    Never tested my ro system. Since I just bought the upgrade and booster pump from 75 gallon to 150 gallon. I had to get some way to see my water quality. Worth every penny.
  • Excellent! By Loren on 4/22/2013

    Hooked it up out of the box, was getting a reading instantly. Great for letting you know when you need to replace your filters, so in a sense saves you money. And keeps your aquarium clean and in tip top shape. I will not go with out one anymore.
  • A needed item if you have a RO/DI system By Rob Coberg on 12/3/2012

    I order one of these units a week or so ago, good thing I did . I would have never known my tds were hi as they were. I am taking corrective action to get it to 0 tds where it should be.
  • Must Have By dgil71 on 7/10/2012

    Have an RO system? Then you must have one of these. Accurate reading, super easy to install!

Write Your Own Review

You're reviewing: Single Inline TDS meter SM-1 - HM Digital