3-in-1 measurement
Check TDS, EC, and temperature in one device, so you get a complete water quality picture without juggling multiple tools.
- Free shipping
- 14-day easy returns
- Secure checkout
- Quality guaranteed
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Why customers love it
Know exactly what’s in your water
This 3-in-1 digital tester measures TDS, EC, and temperature in one compact pen-style device, so you can quickly check water quality at home, in the lab, or on the go.
- Measures TDS, EC, and temperature in a single test
- Large, clear LCD screen with data-hold function for easy recording
- Auto-off feature extends battery life and reduces power consumption
- Factory calibrated with automatic temperature compensation for reliable results
- Wide measurement range (0–9990 ppm and 0–9990 µS/cm) for versatile use
- Compact pen-style design, perfect for home, lab, or on-the-go testing
Why you’ll love this tester
Clear, easy-to-read display
The large LCD screen with data-hold function lets you lock and record readings comfortably.
Longer battery life
The auto-off feature reduces power consumption, so the tester is ready when you need it.
Reliable, ready to use
Factory calibrated with automatic temperature compensation, it delivers consistent results right out of the box.
Specs
The details that matter
Built to last outdoors, season after season.
- Product Type
- Digital Water Tester Meter Pen
- Measurement Parameters
- TDS, EC, Temperature
- TDS Range
- 0-9990 ppm
- EC Range
- 0-9990 µS/cm
- Display
- White LCD
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
Everything you might want to know before you order.
What does this tester measure?
This 3-in-1 digital water tester measures total dissolved solids (TDS), electrical conductivity (EC), and temperature in one device.
What is the measurement range?
The tester covers a wide range of 0–9990 ppm for TDS and 0–9990 µS/cm for EC, making it suitable for various water quality checks.
How do I record a reading?
The large, clear LCD screen includes a data-hold function, so you can lock the current reading for easy recording.
Does the tester need calibration before use?
No, it is factory calibrated and features automatic temperature compensation, so it delivers reliable results without extra setup.
How does the auto-off feature help?
The auto-off feature extends battery life and reduces power consumption, so the tester lasts longer between uses.
Where can I use this tester?
It is ideal for monitoring drinking water, aquariums, hydroponics, and checking that your filters are working effectively.
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. Standard returns have a €4.00 EUR (approximately $4.66 USD) flat-rate return shipping fee, deducted from your refund. Return shipping is free for items that arrived damaged, defective, or incorrect. Items should be unused and in original packaging where possible. Contact us before sending anything back.
G
I really liked this product, it works very well.
E
Good product! reliable seller! thank you!
A
Everything's fine, we'll test it.
D
Seems to work good ,really cheap, what else do you need?
C
The product was received in good condition.
O
It safely arrived, everything seems good and as described.
It measures alright, but i still have to play more with it and understand what readings mean to begin with. Anyway. If i got any problems, i will write additional feedback, otherwise it is good!
I recommend seller and product. Thanks!
J
Everything is very good. Thank you, I recommend the seller.
S
device with a battery, thanks to the seller
N
This is very good, life saver
C
The product is excellent, high quality, and works perfectly — i’m very satisfied with my purchase.
A
The digital tds water quality tester is an excellent tool for quickly checking water purity. Its compact, pen-style design is lightweight and easy to carry, making it perfect for home, travel, aquariums, and filtered water systems. The bright digital display gives fast and accurate readings in parts per million (ppm), helping you easily monitor water quality and filter performance. Simple one-button operation and automatic shut-off make it user-friendly even for beginners. Built with durable materials, it feels solid and reliable. Overall, this tds tester is an affordable, practical, and highly useful device for ensuring clean, safe water every day. Other than pros, negative about the meter is that it cannot detect the contaminants eg lead and also virus and bacteria.. but overall it will give you general idea about water! So definitely i’ll recommend it as well as the seller!
F
The digital water quality tester tds ec meter is exactly as described and arrived safely in time. I am very happy i bought it cause it is working as it should be. Thank you.
A
Arrived on time gonna try soon
C
arrived safely
A
Great communication and fast deliver well recommended to other clients.
J
Everything is fine.
H
Beautiful and good... works effectively.
P
17 days delivery. All seems good
V
The product arrived earlier than the specified date, the quality of the product is good, I recommend the seller.
C
very good
L
Everything perfect, thank you.
L
Perfect. Works perfectly. Arrived on time.
