TDS Meter – Water Quality Tester
Add Ons & Accessories
Know your water in seconds. This digital TDS meter measures total dissolved solids from 0–9990 ppm, so you can verify your filtration is working, check source water before treating, and know exactly what you're drinking.
You can't manage what you can't measure. A TDS meter tells you how many total dissolved solids are in your water — the dissolved minerals, salts, and metals that filtration and reverse osmosis are designed to remove. It's the fastest way to know whether your water is clean, whether your filter is still working, and how your source water actually stacks up. Dip the probe, read the number. A low number means clean, low-mineral water. A high number means dissolved contaminants your treatment needs to address. Simple to use, instantly informative, and small enough to live in any kit.
Why every water plan should include one:
Verify your filtration and RO systems. Test your water before and after it passes through a filter or reverse osmosis system and you'll see exactly how much it's removing.
Check source water in the field. Testing an unfamiliar water source before you treat it tells you what you're dealing with.
Monitor your home water. Keep tabs on your tab, well, or stored water over time so changes don't go unnoticed.
A TDS meter is one of the most useful, affordable tools you can add to a serious water plan. Pair it with our filtration, purification, and reverse osmosis systems to verify your setup is performing, or use it alongside our Water Quality resources to build a complete picture of your water.
Note: A TDS meter measures total dissolved solids and overall water purity — it does not detect specific contaminants like bacteria, viruses, lead, or PFAS. For a full contaminant breakdown, pair it with professional water testing.
Do not cross contaminate between dirty and clean water.
Clean and dirty labels shown on device are not included, and are an available separately as an add-on product below. Cut to fit per application.
This TDS Meter requires two LR44 batteries, which are not included.
Water treatment products must be used strictly according to the manufacturer’s instructions. Improper use may result in ineffective water treatment or potential health risks. Always read and follow all directions, warnings, and safety guidelines provided on the product packaging before use. By purchasing this product, you acknowledge that safe and proper usage is your responsibility. We assume no liability for misuse, improper handling, or failure to follow manufacturer instructions. Your water treatment is your responsibility.
