pH Meter, Digital 3-in-1 TDS, pH & Temperature Water Tester pH Pen, 0.01 High Accuracy Reader TDS Meter & PH Tester, pH Meter for Drinking Water, Aquarium,Pool, Hydroponics, Plants, Wine, Lab (Gray) — Open-Box, 5% Off

【3-IN-1 pH METER FOR WATER】 Measure pH, TDS (ppm), and temperature (°F/°C) simultaneously on one screen with this versatile pH meter and tds meter. No switching modes, no extra steps, just quick, complete water testing in seconds with a reliable water tester 【HIGH PRECISION READINGS】 Ammsia pH tester equipped with a 0.01 resolution chip and premium electrode, it delivers stable and accurate results for water, aquariums, hydroponics, brewing, and more, ideal as a pH meter for water 【SIMPLE CALIBRATION】 Digital pH meter supports quick 1-point calibration or precise 3-point calibration. Easy setup process makes this pH tester water device perfect for both beginners and advanced users 【AUTO TEMPERATURE COMPENSATION】 pH tester built-in ATC (32°F–140°F) automatically adjusts for temperature changes, so you get true pH readings without manual correction from this digital water tester 【CLEAR BACKLIT DISPLAY】 Auto-activated backlight lets you read measurements instantly in dark or low-light environments, making this pH water tester perfect for grow tents, basements, or nighttime use 【MAKE BETTER WATER DECISIONS】 Know exactly when to take action. This water pH tester helps you adjust pH, protect fish, improve plant growth, and ensure safer water, no more guesswork 【TEST WATER ANYTIME, ANYWHERE】 Pocket-sized and lightweight design makes this pH pen easy to carry for home use, travel, or on the spot testing
Test Smarter. Get Clear Answers Fast.

A good reading changes everything. This all-in-onepH meter makes it easy to understand your water in seconds—no guesswork, no complicated setup.

Whether you're checking drinking water, managing a tank, or dialing in your hydroponic system, this compact water tester gives you the data you need to make the right call.

3-in-1 Water Testing Made Simple
This versatile ph tester water device measures pH, TDS (ppm), and temperature at the same time. No switching modes back and forth. Just dip, wait a few seconds, and read everything on one screen.

Perfect for:
Drinking water testing
Aquariums & fish tanks
Hydroponics & grow tents
Pools, spas, and tap water
Brewing, fermentation, and DIY projects

If you need a reliable ph meter for water, this one covers it all.

Accurate Results You Can Trust
Built with a high-resolution sensor and premium electrode, this ph water tester delivers fast and stable readings with ±0.01 pH accuracy.

The built-in ATC (Automatic Temperature Compensation) ensures your readings stay accurate even when water temperature changes. No manual adjustments needed.

A dependable tds meter digital water tester that works when you need it.

Easy to Use — Even for First-Time Users

No technical skills required. This ph pen is designed to be simple from the start.

Quick Start:
1. Remove the cap and turn on the device
2. Dip the probe into the water
3. Wait a few seconds for the reading to stabilize
4. Read pH, TDS, and temperature instantly

That’s it. Fast, clear, and frustration-free.

Calibration Made Flexible

For the best accuracy, calibration is recommended. You can choose what works for you:

Quick Calibration (1-point): Fast and easy for everyday use

3-Point Calibration: Higher precision using pH 4.01 / 6.86 / 9.18 solutions

How to Calibrate:
1. Dissolve calibration powder in clean water
2. Turn on the meter and switch to pH mode
3. Place the probe into the solution
4. Press and hold the CAL button until the value stabilizes
5. Repeat for additional points if needed

Simple steps. Reliable accuracy.
Smart Design for Real-Life Use

Auto Backlight: Easy reading in low light or at night

Pocket Size: Take yourph tester anywhere

Auto Shut-Off: Saves battery after 5 minutes of inactivity

Lightweight & Portable: Ideal for home or on-the-go testing

Helpful Tips for Better Performance

To get the most out of your water ph tester, keep these in mind:
Before first use, soak the probe in clean water for 5 minutes
Rinse the probe after each use to maintain accuracy
Avoid getting water inside the device
Recalibrate if readings seem off

Good habits help extend the life of your tds meter and keep readings consistent.

Make Better Water Decisions Every Day

Numbers are helpful. Knowing what to do with them is even better.

Use this ph meter for water to:
Adjust pH levels for healthier plants
Protect fish from harmful water conditions
Check drinking water quality
Monitor filtration systems

A simple tool that gives you confidence in every reading.

Compact. Accurate. Easy to trust.

Upgrade your testing routine with a reliable ph tester that works wherever you need it.