Best Tds Meter 2026

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Last Updated - 27.03.2026

Best Choice

01

HM Digital

HM Digital DM-2 Commercial Inline Dual TDS Monitor Meter Testing PPM for Water

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9.8

Exceptional

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Dual Range 0-9990ppm
Digital calibration
Designed commercial/industrial applications
Commercial Amd Home, such as Aquariums, swimming pool, RO drinking water system, water filter, air purifier and more
Auto-off function, switches off automatically after 3 minutes of non-use

42,90 €
02

Pious

Pious PH Meter Water, Ph/Salt Content/EC/TDS/Temperature Multifunction PH Meter, Automatic Temperature Compensation PH Value Meter, Suitable for Drinking Water, Swimming Pool, Hydroponics, Spa

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9.7

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.

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The portable EC meter is widely used: stable performance, suitable for household water, drinking water, reverse osmosis systems, hydroponics, aquariums, swimming pools, hot tubs, spas etc. to meet a variety of water quality tests requirements
Support Auto Calibration: Easy automatic calibration at 4.01, 6.86 and 9.18 according to the instructions with the included kit. The device is factory calibrated. For optimal accuracy, we recommend calibration before the first use. If you have any questions, please contact our customer service
Multifunctional pH meter water: the TDS meter for drinking water can perform a variety of measurements. With pH, EC, TDS, salt content and temperature measurement capabilities, the backlight ensures that you can use the product in dimly lit working environments
Easy to use and easy to use: turn on the pH meter, simply press the (MODE/CAL) button to switch between pH, salinity, EC and TDS and read values. Long press the HOLD/TEMP button to switch between the units temperature and Celsius
5-in-1 pH meter pool: the pH ec meter with a newly upgraded sensor probe and precise low impedance electrode for reliable readings. The display stabilises in approx. 10 seconds and is then clearly readable

39,99 €
Value for Money

03

Measury

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

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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.

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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 %.

27,95 €
04

Aideepen

TDS/EC/TEMP Water Quality Tester

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9.3

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.

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TDS/EC/TEMP Water Quality Tester

8,54 €
05

Aideepen

TDS/EC/TEMP Water Quality Tester

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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.

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TDS/EC/TEMP Water Quality Tester

8,99 €
06

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

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8.9

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.

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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.

6,88 €
07

HM Digital

HM Digital Handheld TDS-3 Tester

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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.

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Main highlights

Portable design: lightweight and compact, with convenient carry bag for easy carrying
PRECISE TDS MEASUREMENT Accurately reads the total dissolved solids (TDS) in your water, from 0 to 9990 ppm
EASY TO READ DISPLAY Features a digital display for clear readings at a glance
Built-in thermometer: measures water temperature for more accurate TDS measurements
BATTERY OPERATED: Powered by batteries for convenient, cordless use

19,59 €
08

HIXO

HIXO 1 x TDS Meter (ppm) TDS Meter with Titanium Probe - Water Tester - Water Quality for Drinking Water, Osmosis, Aquarium, Hydroponics, Pool & Fountain

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8.4

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.

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[Titanium Probe with ATC - Exact & Stable Values] Corrosion-resistant probe plus automatic temperature compensation (ATC) deliver reliable results in a few seconds - without influence of fluctuations.
[PRECISE TDS MEASUREMENT - 0 to 9990ppm] Factory calibrated, resolution (1000-9990ppm) - reliably detects dissolved solids, salts & metals in water as well as water hardness. If you want to determine the water hardness in German hardness, divide the TDS ppm reading by 17.8. Then you will receive the German hardness (dH).
[MULTI-PURPOSE - Water Filter, Aquarium & More] Perfect for testing tap and well water, osmosis & filter systems, descaling system, hydroponic nutrient solutions, aquariums, pool & spa water or coffee/tea machines. The conductance meter is an excellent companion for your measurements.
[HOLD & AUTO-OFF - Pure operating comfort] HOLD button stores the reading, large LCD shows it clearly; automatic switch-off after 5 minutes protects the batteries (2 × AG13 batteries, included).
[Compact & Robust - Always Ready to Use] Lightweight pocket format with protective cap fits in any tool or camping bag - ideal for household, office, travel or outdoors.

6,89 €
09

Aideepen

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

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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.

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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.

8,99 €
10

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

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17% Off
7.9

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.

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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).

24,95 € 29,95 €(17% Off off)