2026 All-New 4 in 1 Tds Meter Digital Water Tester - Accurate and Reliable TDS EC & Temp(°C,°F) Meter - 0-9999ppm - Professional Testing for Drinking Water, RO/DI System, Aquariums etc

I am so pleased to say that it works exactly as described in the ad. I would recommend this TDS to anyone who wants to purchase one. I’m sad that I had to purchase one in the first place because the one that I got with my canister was crap but I’m glad to know that there are companies here who are making really good TDS meters and this is definitely one of them.

This meter is simple to use and gives quick readings. The display is easy to read, and it's a handy tool for checking our drinking water. For the price, it's a great value. I liked it enough that I'm planning to buy another one as a gift for a friend.

Very accurate meter. Super simple to use and lightweight. I compared it to my pH meter that also measures ppm and they were very similar. I used this for my freshwater aquarium and it made sense with the gH levels in my water. I’ve had it for a month and it’s still working well. The first picture is the actual product. The second picture is a GIDIGI pH meter.

While very handy to have around, it seems this thing has a trap in it somewhere that salts are accumulating. Every reading seems to become lower artificially. Now, I am doing my best to flush it with RO after each test. I do not have access to di water. I am also skeptical about its lifespan, because it seems a little too cheap and flimsy

I’ve been using the 2025 All-New 4-in-1 TDS Meter for a few weeks now to check water quality in my aquarium and for general testing around the house, and overall it’s been accurate, reliable, and easy to use. Right from the first test, the readings felt consistent. Whether I was measuring total dissolved solids (TDS), electrical conductivity (EC), or water temperature, the numbers matched what I expected based on past tests with other meters. The ability to switch between °C and °F is a nice touch, and the digital display is clear and readable even in lower light. One thing I appreciate is how simple the device is to operate. There are only a couple of buttons, and once you learn the basics (calibrate, dip, and hold for a stable read), it’s very straightforward. The meter responds quickly, and the readings stabilize in a matter of seconds, which makes testing quick when you’re doing multiple samples. The build feels solid for the price — it’s lightweight but doesn’t feel flimsy, and the protective cap helps keep the sensitive electrodes safe when stored. The digital screen is easy to read, though it doesn’t have a backlight, so if you’re working in dim conditions you might need a light source. A few small things to know: The probe section is a bit compact, so you have to be careful to dip it deep enough for accurate readings, especially in shallow containers. It’s not waterproof beyond the sensing area, so avoid submerging the body of the tester. Overall, this 4-in-1 TDS meter gives you good accuracy and reliable performance at a price that’s very reasonable — great for aquarium hobbyists, water quality checks, or anyone who wants quick insight into water conditions without spending on more expensive lab gear.y

It's a good one for the price. Shipped fast; works well. Just hold on to it; if it drops in the drink, it's toasted. It's NOT waterproof.

Works great

Compact and easy to use right out of the box. Gives consistent TDS and temperature readings in seconds. Great value for routine water quality checks!

As it says on the tin

The 2024 All-New 4 in 1 TDS Meter Digital Water Tester is a reliable and accurate tool for testing water quality. Whether you're concerned about your drinking water, RO/DI system, aquarium, or pool, this meter provides professional-grade testing with ease. Its ability to measure TDS, EC, and temperature (in both Celsius and Fahrenheit) ensures comprehensive analysis. With a range of 0-9990ppm, it covers a wide spectrum of water compositions. The device is user-friendly, making it suitable for both beginners and professionals. Overall, it's a must-have tool for anyone serious about maintaining water quality in various settings.

ちゃんと使えました。

水質の変化を知るということであれば用途としてはいいです。

A simple device that does the job.