• $69.00
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The Titanium S1 TDS monitor can be used to check the quality of your inlet or outlet water to help you determine when it’s time to replace the cartridges in your reverse osmosis system. This is the most common application for a TDS meter in our hobby and the Titanium S1 is ideal for the job with an accuracy of +/- 2%. 


It’s super easy to install, too. A ¼” push connect union tee is included to make setup a breeze. You can calibrate the Titanium One to ensure long-lasting accuracy. 


To conserve battery life, the unit will turn off automatically after 3 minutes of non-use. The battery is not proprietary, either. The Titanium S1 uses a common CR2032 lithium battery so when it comes time to change it, you should have no problem finding a replacement. Under normal use, the battery should last a year or more! There is also a low battery indicator on the display so you’ll never be left high and dry. 



Check out these awesome features:

  • Simple installation with a ¼” push connect union tee included

  • High quality titanium probe

  • Small and compact design

  • Auto-off function

  • Can be calibrated

  • Magnetic mount

  • Low battery indicator


The Titanium S1 TDS-100S includes:

  • Digital Inline TDS - Titanium S1 x1

  • ¼” Push Connect Union Tee x1


Titanium S1 by the numbers:

  • Range : 0-999 ppm

  • Resolution : 1 ppm

  • Accuracy : +/- 2%

  • Power Source : CR2032 Lithium Battery x1

  • Battery Life : 1 year


Titanium S2 is the smallest inline TDS meter available on the market. It uses titanium probe, which performs excellent corrosion resistance. It is very easy to install with a 1/4” push connect union tee (included). Also, it is calibratable for accurate result. After 3 minutes of non-use, it will turn off automatically to conserve battery life.

The high-quality titanium probe with good conductivity and durability delivers more accurate test result. Inline design can measure water quality instantly, which allows you to know when to replace the filters.

Its compact and thin body and wide backlit LCD display fit in any places and allow you to see the reading at a glance even if it is in the dark.

Just press the button and it will show the reading immediately and turn off after 3 minutes automatically to save battery power. The low-power indicator reminds you when to change the battery to get the most accurate test result.

With the integrated magnet and the included 1/4” push connect union tee, you can install and attach it on your RO/DI system in a second. It is the best choice to monitor the RO/DI system and make sure you have the best water quality at any time.

Titanium S2 (TDS-200S)
  • Range : 0-999 ppm
  • Resolution : 1 ppm
  • Accuracy : +/- 2 %
  • Power Source : CR2032 Lithium Battery
  • Battery Life : 1 year


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