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Instant TDS Readings in Your Hand
Quickly measure the total dissolved solids (TDS) in your water with this portable, easy-to-use meter. Perfect for drinking water, reverse osmosis systems, aquariums, and hydroponics.
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Clear water isn’t always safe. Invisible dissolved solids can pass through filters, causing odd-tasting drinks, unhealthy aquariums, or slow plant growth. Lab tests are costly and slow, and filter changes often feel like guesswork.
The Varify TDS Meter gives you instant answers. Built for homeowners, aquarium owners, hydroponic growers, and RO users, this lightweight digital tool checks your water in seconds. You’ll instantly know if your filter works, your fish and plants are safe, and your water is truly clean.no waiting, no guessing, just fast, reliable results.
Instant TDS readings—fast, portable testing anyone can do in minutes.
Remove the cap and turn on the meter.
Insert the probe into the water sample.
Allow the reading to stabilize (a few seconds).
Record the value and compare to your ideal TDS range.
Our TDS meter checks drinking water, aquariums, hydroponics, filters, and even travel water in seconds. Get instant digital readings to protect your health, keep plants and fish thriving, and know when your water or filters need attention.
Drinking Water
Aquariums & Fish Tanks
Hydroponics & Gardening
Pools & Spas
Water Filters & Purifiers
Travel & Outdoor Use
Beverage Preparation
Drinking Water
Aquariums & Fish Tanks
Hydroponics & Gardening
Pools & Spas
Water Filters & Purifiers
Travel & Outdoor Use
Beverage Preparation
Drinking Water
Aquariums & Fish Tanks
Hydroponics & Gardening
Pools & Spas
Water Filters & Purifiers
Travel & Outdoor Use
Beverage Preparation
Drinking Water
Aquariums & Fish Tanks
Hydroponics & Gardening
Pools & Spas
Water Filters & Purifiers
Travel & Outdoor Use
Beverage Preparation
A TDS meter measures Total Dissolved Solids in your water. things like minerals, salts, and impurities. It helps you know if your water is truly clean, safe, and if your filters are working properly
You can use it for drinking water, aquariums, hydroponics, wells, and reverse osmosis systems. It’s also handy for travel, so you can test water anywhere
Generally, water with a TDS level below 300 ppm is considered excellent for drinking. Anything above 500 ppm may affect taste and could mean it’s time to purify your water.
No complicated calibration is needed. It’s ready to use right out of the box for quick and easy water testing.
Testing helps protect appliances from costly damage, improves water taste, and ensures you know when to soften your supply, saving you money and giving peace of mind.
✔ Verified Purchase
Fresh Product! The expiration date is printed on the box (May 25, 2025) — gives plenty of time to use the strips. Used in a hydroponic setup (unexpectedly helpful for chlorine checks) and the strips helped me balance free chlorine. Easy to use and clear readings; I tested multiple times and adjusted between readings. Photos attached by reviewer showed before/after.
✔ Verified Purchase
Reliable. Fast delivery and easier to use than bottled tests. Readings are straightforward and there are plenty of extra strips included.
✔ Verified Purchase
Easy to use. These last us a whole summer! Clear, easy-to-read colors and good value for the quantity.
✔ Verified Purchase
Accurate and easy. Much faster than liquid kits — I've compared results with lab-style tests and these are consistent. I pay particular attention to alkalinity and these help me stay in range.
✔ Verified Purchase
Best test strips I have purchased by far. Accurate and easy — I will be a return customer.
✔ Verified Purchase
These work well — the tabs change quickly and match the canister chart. Easy to use and good value for the quality.
*Reviews are sourced from Amazon customers. Link each card to its original Amazon review for verification.
EPA-compliant methods.
60-day no-hassle guarantee
100k+ customers
Designed in USA
The water you drink may look clean, but it can still carry hidden impurities, salts, and dissolved solids that affect taste, health, and safety. Many families don’t realize their water quality is compromised until it starts impacting daily life.
A TDS Meter gives you instant insight. helping you check purity, track filter performance, and stay confident that every sip is safe.
Whether you use tap water, bottled water, or water from a purifier, this simple tool makes it easy to test quality in seconds. With accurate readings at your fingertips, you can protect your family’s health, extend the life of appliances, and enjoy better-tasting water every day.
