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A vertical digital TDS water quality tester with a black and white design and an on/off switch.
A tall, cylindrical digital water quality tester with a white upper section and a dark gray base.
A vertical white and black digital TDS water quality tester with a display showing 333 ppm.
A white digital TDS water quality tester with a titanium alloy probe and battery case.
A white digital TDS water quality tester with a black handle and a separate charging/connection plug.
A white digital TDS water quality tester with a plastic probe and connector.
Packaging for a digital TDS meter water quality tester device.
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Digital TDS Water Quality Tester

Regular price $19.99 Sale price $16.99

Why customers love it

Instant clarity on your water's true quality

Take control of your water quality with this compact, pen-style TDS tester, offering fast and accurate insights into purity.

  • Accurate readings across a wide range (0 to 9,990 ppm)
  • Precision guaranteed with ±2% accuracy
  • Lightweight and durable ABS plastic design
  • Simple one-touch operation for quick results
  • Perfect for monitoring various liquids daily
A vertical digital TDS water quality tester with a black and white design and an on/off switch.

Why Choose the Digital TDS Tester?

High Accuracy

Measure TDS levels with ±2% precision for reliable results.

Portable Design

Its pen-like form factor makes testing convenient for on-the-go use.

Data Retention

Use the manual lock function to secure measurements for later comparison.

Reliable Power

Runs smoothly on standard LR44 batteries for dependable performance.

Setup

Testing in 3 Simple Steps

Get instant water quality data without the hassle.

  1. Prepare the device

    Ensure the device is clean and ready for use.

  2. Dip and measure

    Gently dip the waterproof probe into the liquid you wish to test.

  3. Read the result

    Observe the large LCD screen for your instant TDS reading.

Technical Details

Key Specifications

The technical details you need to know.

Measurement Range
0 to 9,990 ppm
Accuracy
±2%
Body Material
ABS Plastic
Battery Type
LR44 Batteries

Vs. Generic Testers

Precision vs. Guesswork

Why our tester offers superior reliability.

Feature
Digital TDS Tester
Generic/Cheap Kits
Measurement Precision
±2%
Often inaccurate or uncalibrated
Readability
Large LCD Screen
Often small or difficult to interpret
Durability
Durable ABS Body
Fragile plastic components
Ease of Use
Simple One-Touch Operation
Requires complex setup or multiple steps

Our worry-free shopping promise

If your order arrives damaged, defective, or not as described, contact us within 14 days and we will make it right with a replacement or refund.

Frequently Asked Questions

Answers to common user inquiries.

How accurate are the readings?

Our device provides readings with a guaranteed precision of ±2%, ensuring you get reliable data for your water quality checks.

What liquids can I test?

This tester is ideal for testing various liquids, including drinking water, aquarium water, hydroponic nutrient solutions, and brewing waters like coffee or kombucha.

How long does the battery last?

The device runs reliably on standard LR44 batteries, providing dependable power for your testing needs.

Can I use this for pool water?

Yes, the waterproof probe allows safe testing of pool water quality for monitoring and maintenance purposes.

Shipping & returns

Shipping

  • Delivers to United States (based on your selected country/region).
  • Estimated delivery: 3–15 business days after dispatch.
  • Shipping cost: Free.

Returns

You can request a return within 14 days after delivery. Items should be unused and in original packaging where possible. Contact us before sending anything back.