TDS METER FOR WATER TESTING
Instantly measures Total Dissolved Solids (TDS) to reveal what’s really in your water. This simple digital test delivers fast, accurate readings so you can compare tap water vs. filtered water, verify reverse osmosis performance, and confirm your filtration system is working as it should.
Made In USA
Secure Checkout
Durable & Long Lasting
Display: Clear digital screen for instant, easy-to-read results.
Operation: One-button use with immediate readings in seconds.
Use Cases: Tap water testing, filtered water comparison, RO verification, RV and travel water checks.
Instant Water Quality Insights
Measure Total Dissolved Solids (TDS) in seconds—compare sources, verify filtration performance, and know your numbers fast.
Fast, Accurate TDS Readings
Get an instant digital TDS (PPM) reading in seconds so you can quickly understand your water’s dissolved solids level.
Simple Digital Display
Clear, easy-to-read screen makes results straightforward—no guessing, no complicated steps.
Compare Tap vs. Filtered Water
Quickly test before and after filtration to see if your RO, RV, or under-sink system is making a measurable difference.
Perfect for Home & Travel
Ideal for homeowners, RV travelers, and anyone who wants a quick water-quality check at the sink, on the road, or at a new source.
TDS Meter Guide
How Pure Is Your Water?
Use your TDS meter to measure Total Dissolved Solids in PPM (parts per million). Lower numbers generally mean fewer dissolved solids. Use this chart as a quick reference to compare sources and check “before vs. after” filtration.
0–50 PPM
Ideal drinking water (often RO/DI/distilled and similar low-TDS sources).
50–100 PPM
Common with carbon-filtered water and some spring waters.
100+ PPM
Often indicates hard water or higher mineral content (tap/mineral springs can run much higher).
Note: TDS is a general measurement of dissolved solids. It does not identify specific contaminants. Also, mineral-added or alkaline water can read higher due to beneficial minerals.