Christmas SaleToday's sale ends

Best Tds Meter - Holidays Sale

Advertising Disclosure

Last Updated - 14.12.2025

Best Choice

01

Measury

MEASURY EC Meter Tester TDS Measuring Device for Osmosis Systems Aquarium and Drinking Water Conductivity Meter with Thermometer Conductivity Meter

Show more
9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Three different modes: Switch between output of results in TDS (ppm) or EC (μs) at the touch of a button. In addition, the device is able to indicate the temperature of the measured liquid in Celsius or Fahrenheit.
Ready for immediate use: Our conductor meter is already pre-calibrated from the factory. After switching it on, you can start measuring immediately. Post-calibration is possible at any time via the screw on the back of the device.
Quick measurement of solvent materials: The gauge is able to measure the electrical conductivity of the water (EC). From this value, the number of solids TDS (Total Dissolved Solids) can also be determined.
Perfect readability guaranteed: Thanks to the practical hold function, measuring results can be frozen for easy reading. The brightly illuminated display makes it much easier to operate the conductivity meter especially in the dark or under strong light incidence.
Accurate measurements: The MEASURY TDS&EC meter measures the conductivity (EC) of 0 - 9,990 μs/cm and the TDS value of 0 - 9,990 ppm. Resolution: 1μs/ppm from 0 - 999, 10 μs/ppm from 1,000 - 9,990. The accuracy of the measuring device is ± 2 %.

29,95 €
02

Measury

Measury Mikrosiemens Meter and PPM Meter Water, Water Tester, Drinking Water, TDS Meter for Drinking Water, EC Meter, Conductivity Meter Aquarium - Conductivity Meter Water Tester

Show more
9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

There are three modes for output results: TDS (ppm), EC (µs), and temperature (Celsius or Fahrenheit).
The hold function allows easy reading of the measurement results, and the illuminated display improves readability in the dark or strong light.
The gauge measures the conductivity of 0-9990 µs/cm and the TDS value of 0-9990 ppm with an accuracy of ±2%.
The conductance meter is pre-calibrated and ready to use. If necessary, it can be easily recalibrated.
The TDS&EC meter measures the electrical conductivity (EC) of the water and can determine the TDS value (Total Dissolved Solids).

29,95 €
03

Jinpojun

Jinpojun Water Tester, TDS Meter, Water Quality Tester for Drinking Water, Swimming Pool, Aquarium, Pools and Laboratory, Measuring Range 0-9990 PPM (Black)

Show more

12% Off
9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

| Test your water | - How pure is your water? Use the TDS meter to draw conclusions.
| Measuring range | - 0 - 9990 ppm (parts per million)
Wide use: ideal for drinking water test, swimming pool, laboratory, plants, aquarium, well water, etc.
Reliably measure TDS. Equipped with a high-quality titanium alloy probe, the TDS water quality tester allows a quick and convenient test.
LCD screen: with the numerical LCD display, you can see the changes in water quality more clearly and relieve the worries in life.

7,89 € 8,99 €(12% Off off)
04

Aideepen

TDS Drinking Water Meter, Aideepen 3 in 1 TDS/EC ppm Meter Water with Backlight, Water Quality Tester for Pool, Drinking Water, Aquarium, Swimming Pool

Show more
9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Water tester drinking water measuring range: conductivity: 0-9999us/cm, TDS:0-9999ppm, Celsius:0.1-80.0°C, Fahrenheit:32.0-176.0°F, accuracy: ±2%.
Versatile The TDS meter is suitable for home and laboratory water quality testing, such as drinking water, tap water, aquariums, ponds, swimming pools, filtered water, bottled water. Vue du manuel en allemand : All characters in brackets must be entered (http://8.217.75.21/Aideepen/B0CDH629WN DE.pdf)
Multi-mode switching: click the shift button to switch between TDS and conductivity, the meter will factory display the TDS value; 2 consecutive touch of the shift button, Celsius Fahrenheit switching, the meter is factory preset to Celsius.
EC meter calibration method: 1. Prepare tools: solution with known value 2. Press the first ON/OFF switch to turn on the device. 3. Remove the electrode shield. 4. Place the electrode in a solution of known value and gently swing the solution to remove any air bubbles around the electrode. 5. In the detection state, press and hold the middle button for 5 seconds and then press buttons 1 and 3 to adjust the known solution value up and down. This completes the calibration. The calibration standard solution is EC: 1413 μS/cm (not included)
Calibration function: if there is a measurement inaccuracy, a calibration measurement can be performed. (Comes factory calibrated. Calibration solution not included.)
Automatic shut-off function: the EC meter stores the reading for easy reading and recording and turns off after 5 minutes of inactivity to extend the life of the battery.
3-in-1 water quality tester: the TDS measuring device for drinking water consists of a TDS meter, an EC meter and a thermometer. You can use it to measure the fertiliser concentration, the degree of impurity and the temperature of the water, which is convenient for vegetable growing or aquaculture.

7,99 €
Value for Money

05

flintronic

Flintronic TDS/EC Water Quality Test Meter, Temperature Tester with Backlight, PPM Conductivity Meter ±2% Reading Accuracy, Water Quality Tester for Swimming Pool Drinking Water Aquarium Pools

Show more

29% Off
9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Wide application: suitable for water quality tests at home and in the laboratory, including drinking water, electroplating baths, aquarium water, swimming pool water, well water, deep diving, aquaculture, food processing and more.
TDS/EC meter: A very complete kit for checking water quality, whether from a tap, hot tub, home-brewed water, indoor soil cultivation, aquarium, hydroponics or swimming pool. In addition, TDS test pens are small, lightweight and easy to carry when going out!
Mode change: you can switch between TDS and EC by clicking on the "SHIFT" button. Press and hold the "SHIFT" button twice to switch between Celsius and Fahrenheit. The water quality pen has a holding function that stores measured values for easy reading and logging
High precision: the measuring range is 0-999 ppm with a resolution of 1 ppm. Conductivity: 0-9999us/cm, Accuracy: ±2% The backlit LCD display delivers reliable EC and TDS readings. When working, the electrode should be completely immersed in the water sample (make sure that the electrode head is 1-2 cm away from the water surface to avoid blistering on the electrode surface).
Easy to use: simply turn on the TDS meter, calibrate it before use, gently stir the water and press the "Hold" button. A stable reading will be automatically displayed on the LCD within 10-30 seconds. When not in use for more than 5 minutes, the meter will automatically shut off to save the battery.

5,64 € 7,99 €(29% Off off)
06

aiMaKE

PH Meter + TDS Meter Set, Digital TDS/EC Temperature Meter PH Tester 4-in-1 Set, Water Quality Test TDS Meter PH Meter, for Drinking Water, Swimming Pool, Aquarium, Laboratory

Show more
9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

●【2 devices 4-in-1 PH meter】The PH meter and TDS meter set is a very complete kit for checking the water quality PH/TDS/EC temperature. PH, TDS, temperature, EC. 4 different measurement requirements can be met by both metres.
Wide application: ideal for testing drinking water, tap water and distilled water, it is also a good tool in aquarium, pool, fishing industry, swimming pool, laboratory, etc.
High accuracy and ATC function: the pH meter has a sensitive electrode sensor, measuring range: 0.00-14.00 pH, accuracy: ± 0.01 pH. TDS meter is equipped with high quality titanium alloy probe, measuring range: 0-9999ppm, accuracy: ±2%.
Easy to use: immerse PH value meter and TDS & EC test device in the solution for just a few seconds to accurately detect the water quality. The two meters have a practical LCD display for a clear view.
Automatic calibration: the pH tester with automatic calibration can automatically identify the standard buffer solution. TDS meter is equipped with reliable automatic temperature compensation (ATC) to guarantee accurate readings at different temperatures. In addition, the devices are already calibrated ex the factory, you can get started immediately.

16,99 €
07

Aideepen

TDS/EC/TEMP Water Quality Tester

Show more
8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

TDS/EC/TEMP Water Quality Tester

8,99 €
08

ARKA

TDS Inline Meter - ARKA myAQUA - Accurately Measures Water Quality & Conductivity - 1/4 Inch Connections - Permanently Installed - Ideal for Home & Aquarium Osmosis System - Includes Battery

Show more

18% Off
8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Precise water control - Permanently measures the TDS value (Total Dissolved Solids) in the water for quality monitoring in osmosis systems. Ideal for aquariums, household, plants & drinking water filtration - for best control & safety.
Plug and play installation - Permanently installed behind the osmosis system. 1/4 inch quick connections allow installation in seconds - directly compatible with myAQUA 190, 380, 1900, 3800 & common RO systems.
Includes battery & calibrated - device is ready to use, factory calibrated & battery included. No settings required. Ideal for aquarists, gardeners & household users with osmosis filters or water treatment.
Accurate readings at the touch of a button - Delivers reliable TDS and conductivity values (ppm/µS). Measuring range: 0-999ppm / 0-9999µS/cm Precise control of resin consumption in mixed bed resin filters & resin restorations.
ARKA Quality - Robust construction, precise technology and full compatibility with all ARKA myAqua systems. Designed for professional water treatment & reliable control - aquarium & household.

24,30 € 29,90 €(18% Off off)
09

BMUT

BMUT 3-in-1 TDS Meter with EC and Temperature Meter - Digital Water Quality Tester, Measuring Range 0-9999ppm, for Water, Plants, Aquariums, Drinking Water, etc.

Show more
8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

[Titanium alloy] The durable titanium alloy probe guarantees reliable and fast data acquisition. Whether drinking water analysis, aquaristics, hydroponics, swimming pool checking, well water or science laboratory - this water quality meter is versatile.
[Quality display] Thanks to the large, illuminated LCD screen with colour coding, the water quality is visible at a glance: green stands for filtered, clean water (TDS < 40 ppm), red warns of increased conductivity (TDS > 40 ppm), which may indicate unfiltered or contaminated water. Based on the internationally recognised limit of 40 ppm.
[High requirement] Made under the strictest quality controls, this ppm meter offers a long service life and high measuring accuracy. Designed for users with the highest standards of reliability, safety and ease of use.
[Easy to use] The TDS tester can be activated with just one push of a button. Simply turn on, dip into the water sample - and read the result in seconds. Ideal for travel, camping holidays or everyday use at home.
[3-in-1 TDS METER] This digital meter combines TDS, EC and temperature measurement in one compact device. Ideal for precise water analysis in the home, garden or laboratory. Perfect for assessing water purity and electrical conductivity.

13,89 €
10

LUCKKY

New 4-in-1 TDS Meter Digital Water Tester, Water Quality Test Meter, 4 in 1 Digital TDS/EC/TEMP Water Tester for Drinking Water, PPM Meter Water for Tap, Pool, Aquarium (White)

Show more
8.1

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Versatile applications -- From testing drinking water, well water and pools to hydroponic nutrient solutions and aquariums, this TDS meter is an indispensable tool for numerous applications. Whether at home, in the lab or on the go, this compact and lightweight device is your first choice for monitoring water quality.
High accuracy and instant reading technology -- Our digital water tester is equipped with advanced microprocessor technology and delivers precise readings within seconds. The highly sensitive probe ensures accuracy, while the easy-to-read LCD display delivers fast results.
Energy efficient and long battery life -- This TDS meter designed for durability has an energy-efficient auto-off function that turns off the device after 2 minutes of inactivity, saving the life of the battery. The robust design ensures long-term reliability and makes it a cost-effective choice for regular water testing.
Easy to use: no complicated setup required - simply immerse the probe in the water, and the results will be displayed immediately. The built-in automatic temperature compensation (ATC) ensures accurate readings by compensating for temperature fluctuations, making it perfect for different water conditions.
4-in-1 Multifunction Tester for Water Quality -- This advanced TDS meter measures the total amount of dissolved solids (TDS), electrical conductivity (EC) and water temperature in both Celsius and Fahrenheit. Whether you are testing tap water, a fountain, a swimming pool or a hydroponic system, this device ensures accurate and instant readings and helps you monitor water quality effortlessly.

14,88 €