Is this ready to use out of the box?

Yes. Read the instructions and immerse it in a glass of water.

how do you calibrate this meter?

I know of no way to calibrate this meter. I tested it on deionized water, tap water, Evian bottled water and sewer water — no difference in readings, I tried testing the water in my toilet bowl by dropping it in and flushing it — also no difference I’m sad to assume.

What is the accuracy of this meter?

The accuracy of this meter is ± 2% F.S. This can be used for testing in the lab.

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Description

💧 Stay ahead of the purity curve—test like a pro, anywhere, anytime!

SMART POWER MANAGEMENT - Auto-off feature conserves battery life, while the hold function lets you capture and record readings effortlessly.
PORTABLE RUGGED DESIGN - Comes with a protective carrying case and belt clip—perfect for on-the-go professionals who demand accuracy.
TRIPLE FUNCTION PRECISION - Measure TDS, temperature, and electrical conductivity all in one sleek, professional device.
INSTANT WATER PURITY CHECK - Get precise ppm readings with a single button press—know your water quality in seconds.
ULTRA WIDE DETECTION RANGE - From 0 to 9999 ppm, monitor everything from pristine drinking water to aquarium conditions with confidence.

The 2025 New TDS Meter is a professional-grade 3-in-1 digital tester that measures total dissolved solids, temperature, and electrical conductivity with a broad 0-9999 ppm range. Designed for ease and accuracy, it features instant readings, auto-off power saving, and a hold function, all housed in a rugged, portable case ideal for drinking water, aquariums, and more.

Reviews

W**R

Great for testing water when I travel

I take this with me when I travel the US and abroad. I use it every trip to check tap and bottled water.

22.09.2025

D**E

Good Unit

Purchased for use in my RV that sits in a resort in Florida. Appears to provide very accurate reading. Baseline measurement taken with bottled water from Walmart, then from faucet, after water softener from inside faucet, and from frig water dispenser. Best water quality from frig.

5.09.2025

R**M

Must have for home water filtration!

Must have to check your home water, especially if you have any kind of filtering system on your drinking water. I use this to check my tap water before filter and after reverse osmosis filtration system to make sure everything is working normally. Very easy to use, only issue I would say is the battery cap comes off a little too easy if you are not careful and the battery will fly out.

2.09.2025

S**S

Accurate and Easy to Use

This TDS meter works great. It’s simple to use, very accurate, and I like that it also shows temperature and EC. The carrying case makes it easy to take anywhere. Perfect for testing drinking water and aquariums.

8.09.2025

J**Y

MUST GET!

Highly recommend it, my water is flippin death!

6.09.2025

A**U

Good

Test drinking water.

27.08.2025

M**N

Permanent battery

Works great but battery cannot be replaced.

28.05.2025

S**Y

It’s nice to know

It’s nice to know what grade of water you are drinking

18.08.2025

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