Best Tds Messgerãt 2026

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Last Updated - 22.07.2026

Best Choice

01

Pious

PH Meter Water, PH/TDS/EC/Salinity/Thermometer 5 in 1 pH Value Meter with LCD Display, Automatic Temperature Compensation pH Tester, High Precision Water Tester, Ideal for Drinking Water, Pool

17% Off Limited Time Deal

17% Off

Limited Time Deal

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9.8

Exceptional

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Widely used: pH test can measure in swimming pools, salt water pools, hot tubs, SPAs, aquariums, aquacultures, the pH meter can measure the EC and pH value of hydroponics. TDS and pH meters measure liquids such as permeate water, pool water, drinking water, tap water, irrigation water, pond water, garden water, coffee, fruit juice, brewed wine and beer
User-friendly design: the backlight ensures that you can use the product in dimly lit working environments. With the HOLD/TEMP button, you can record the reading, and the backlight turns off within 30 seconds. Press any button to turn on the backlight again
Calibration The unit is factory calibrated and supports automatic 3-point calibration with the included standard calibration kit (4.01 / 6.86 / 9.18 pH). In order to compensate for transport influences and ensure high measurement accuracy, it is recommended to perform the calibration according to the instruction manual at the first use
Automatic temperature compensation: the pH meter does not need to pay attention to the temperature of the test liquid; this device can accurately measure sample values within the temperature range of 0 °C - 60 °C (32 °F-140 °F), causing the problem of inaccuracy due to liquid temperature changes. Whether in winter or summer, you can get accurate values
5-in-1 pH meter: a digital water tester drinking water can measure pH, salinity, EC, TDS and temperature; 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. Meets the requirements for regular, daily monitoring of water quality and allows you to be informed about the situation of water quality at any time

34,99 € 41,99 €(17% Off off)
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

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9.6

Exceptional

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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).

29,95 €
03

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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9.4

Excellent

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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 €
04

Aideepen

Aideepen Water Quality Test Meter, 3 in 1 Digital TDS/EC/TEMP Water Tester for Drinking Water with LCD Backlight, Non-Slip Design for Pool, Aquarium, Swimming Pool, Pond

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9.2

Excellent

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Main highlights

Water tester drinking water measuring range: conductivity: 0-9999us/cm, TDS:0-9999ppm, Celsius:0-60℃, Fahrenheit:32-140℉, accuracy: ±2%.
Versatile The TDS meter is suitable for home and laboratory water quality testing, such as household water, barrel water, water purifier, swimming pool water, agricultural water, water quality in fish tanks, experimental testing, floriculture, aquaculture. (Please contact us if you have any questions)
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. Press HOLD to lock to lock the data.
High precision: PPM water meter uses a highly sensitive probe made of an alloy to measure water quality and a built-in high-precision temperature sensor with automatic temperature compensation for a variety of environments. And it adopts ribbed anti-slip design.
3-in-1 water 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 €
Value for Money

05

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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8.9

Very Good

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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 €
06

YAOBLUESEA

5 in 1 PH Meter Water, PH/TDS/EC/Salinity/Thermometer with LCD Display, Automatic Temperature Compensation, High Precision Water Tester, Suitable for Drinking Water, Swimming Pools, Aquariums

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8.8

Very Good

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WIDE RANGE OF USES - For use in household, kitchen and garden. 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
Portable pool tester: the water hardness tester is only palm-sized and therefore very handy. Simply turn on the pool meter and press the button (MODE/CAL) to display and read pH, salinity, conductivity and total amount of dissolved solids. With the HOLD/TEMP button, you can switch between temperature and Celsius. Pool Tester extremely easy to use, you get precise measurement results in no time.
Pool pH meter acrylic display and removable probe: the VA display of the pH value meter has a backlight for easy readability even in low visibility conditions (automatic shut-off: disables after 5 minutes of inactivity). Thanks to the removable construction of the digital pH tester pool, replacement costs are reduced; if the probe is accidentally damaged, you can easily replace the electrode yourself.
HIGH PRECISION 5 IN 1 POOL PH/EC METER This pH/EC meter uses a newly improved sensor probe and ultra-low impedance high-precision electrodes for fast response times and accurate, stable readings. Three calibration powder bags are included to ensure measurement accuracy. Precise calibration and easy operation.
5-in-1 pH meter for water test set: water tester drinking water quality with high-precision sensors, the device delivers measurement results within seconds. This digital pH meter measures pH value/TDS/EC/temperature/salinity. pH Range: (0.1-14.0pH) TDS: (0-9999ppm, 10-200ppt) EC: (0-9999μS/cm, 10-400mS/cm) Temperature: (0-60℃, 32-140℉) Salt content: (0-9999ppm, 10-200ppt, 0.01%-25%).Let you know the water quality at any time.

20,99 €
07

ARKA

ARKA myAQUA TDS Inline Meter - Measures Water Quality & Conductivity Accurately - For Osmosis System with 1/4 Inch Connections - Permanently Installed

18% Off

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8.7

Very Good

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Main highlights

Robust ARKA quality for continuous operation - Designed for reliable monitoring in osmosis systems and water treatment systems. Ideal for users who want to keep an eye on their water values precisely and comfortably in the long term.
Precise water control directly on the osmosis system - Permanently measures the TDS value of the water and helps with reliable monitoring of water quality. Ideal for aquarium, household, plant care and drinking water treatment.
Permanently installable with 1/4 inch connections - The inline device is firmly installed behind the osmosis system and can be easily integrated thanks to quick connections. Perfect for myAQUA systems and many common RO systems.
Factory calibrated and ready for immediate use - The device is already calibrated and includes battery ready to use. No complicated settings, ideal for aquarists and households with regular control needs.
Accurate TDS and conductivity measurement at the touch of a button - Measures in the range from 0 to 999 ppm as well as 0 to 9999 µS/cm. Ideal for controlling resin restoration, mixed bed resin filters and overall water treatment efficiency.

24,51 € 29,90 €(18% Off off)
08

KINGOZOYI

TDS Measuring Device for Drinking Water, 3 in 1 Digital Water Quality Tester, EC Temperature Meter for Drinking Water Pool Aquarium Fish Pond Swimming Pool

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8.6

Very Good

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Main highlights

【MULTIPLE USES】: Ideal for checking the pH of drinking water, swimming pools, aquariums, hydroponics, laboratories, tap water etc; ideal for home or laboratory use.
TDS meter: press the switch and immerse the test pen in the water to be tested. The lower the TDS value, the lower the content of dissolved solids in the water and the purer the water
LCD display, mode conversion: simultaneous display of water TDS / conductivity EC and temperature values, HD backlight, data hold function, easy to handle a wide range of environments. Press the "SHIFT" button to switch between TDS/EC mode, Celsius/Fahrenheit mode
High precision, high quality: conductivity: 0-9990us/cm, TDS: 0-9990ppm, Celsius: 0.1-80.0°C, Fahrenheit: 32.0-176.0°F, accuracy: ±2%. Equipped with automatic temperature compensation (ATC) to ensure accurate readings at different temperatures.
3 in 1 design: the water quality tester consists of a TDS meter, an EC meter and a temperature meter. Can be used for testing drinking water, hydroponics or filled aquarium water.

12,99 €
09

Pawfly

Pawfly 3-in-1 TDS Meter Digital Water Tester, TDS EC and Temperature (℃/℉) Meter, Fast Accurate Water Tester, 0-9999ppm Water Quality Tester for Drinking Water Fountain Aquarium

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8.4

Good

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Main highlights

Wide Application This portable TDS meter is great for testing drinking water, tap water and water in wells or aquariums. Good to check whether water purifier, filter or softener are working properly.
Quick and easy test: Start the water quality tester, immerse the 2 probes in the water and stir it gently. The test results are displayed in just a few seconds. Then simply press the "mode button" to immediately check the specific values of TDS, EC and temperature.
Immediately readable: The enlarged, backlit LCD display automatically stores the stabilised readings in just a few seconds, making it easier to check the values. The green screen turns red to give a direct warning when the TDS value is equal to or above 40ppm.
High Precision: With 2 high-sensitivity titanium alloy probes and an intelligent chip, the digital drinking water tester always delivers accurate results. Always help keep your household water clean and safe for drinking or using.
3-in-1 water tester: This water test meter provides professional tests for TDS (total salt content), EC (electrical conductivity) and temperature of the water. It has a super wide test range: TDS (0-9999 ppm), EC (0-9999 µS/cm) and temperature (0-60 ℃/32-140 ℉).

9,99 €
10

YINMIK

YINMIK Digital pH Meter and TDS Tester Set, TDS EC with a Horizontal Screen, ppm Meter Water, Pool pH Meter, TDS EC Meter for Drinking Water, Aquarium

21% Off

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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.

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Main highlights

TDS pH tester 2. GENERATION Are you tired of using the first generation yellow pH meter? The second generation pH TDS combo meter has an exclusive horizontal display. When you get the pH value TDS or EC, you can get the temperature value at the same time, making your work easier and more convenient.
Packing list: digital pH test pen x 1, TDS EC digital tester x 1, pH calibration powder x 6, user manual pH tester x 1, TDS tester x 1.
It can fully meet the needs of hydroponics: pH meter: can monitor the pH value of the hydroponic nutrient solution, which allows the plants to absorb the nutrients to the maximum. PPM&EC Tester Continuously track the nutrient content in the nutrient solution, which prevent the nutrient content from being too high or too low, which hinders the healthy growth of plants.
Help for monitoring the water quality of the pool: pH meter: keep the pH of the pool water normal and gentle on the skin and eyes of swimmers. TDS & EC Tester Maintaining the TDS value of suitable pool water can extend the life of pool equipment.
Assistant for aquarium lovers: pH meter with digital display: Maintain the pH of the aquarium, the enormous change in pH can easily seriously damage the living environment of the fish. TDS and EC meter: monitors the salt content in the fish tank, reminds the fish farmer when to change the water, and keeps the ratio between the different substances in the fish tank in balance

17,99 € 22,69 €(21% Off off)