7-in-1 Water Quality Tester Multifunctional Analysis Instrument Test Pen PH/ORP/EC/TEMP/SALT/S.G/TDS LCD BacklightOpen in new tab.

25,54€

4.6 out of five stars

874 reviews874

TDS Three-in-One Dual-Color Backlit Household Water Quality Tester / EC Conductivity / Temperature Test PenOpen in new tab.

5,94€

4.7 out of five stars

1.470 reviews1.470

7-In-1 TDS/EC/PH/SALT/TEMP/S.G./ORP Multifunctional Water Quality Testing PenOpen in new tab.

23,19€

4.8 out of five stars

234 reviews234

4-in-1 TDS&EC Water Tester, White/Blue Dual Color Options, Backlit Quick Reading, Accurate Measurement 0-9999ppm, Color Alert for Drinking Water & Aquarium UseOpen in new tab.

4,30€

4.7 out of five stars

1.521 reviews1.521

1pc Advanced 9-In-1 Water Quality Test Pen - Home LCD Backlit Accurate Testing for Ph, ORP, EC, TDS, Celsius/ Fahrenheit, H2O, S.G., And Salinity, Portable with Battery Power (Batteries Not Included), Ergonomic Design, Highprecision MeasurementsOpen in new tab.

33,79€

4.7 out of five stars

175 reviews175

3-In-1 Digital Water Quality Tester - TDS, EC, Thermometer for Drinking Water Purity Testing, Aquarium, Pool And Spa Water Quality Tester, Accurate And Easy to Use Design, Perfect for Home Or Professional Water Quality TestingOpen in new tab.

6,58€

4.7 out of five stars

119 reviews119

3-in-1 TDS Dual Color Backlight Household Water Quality Testing/EC Conductivity/Temperature Testing PenOpen in new tab.

6,47€

4.7 out of five stars

1.027 reviews1.027

Five in One Portable Water Quality Testing Pen - PH, TDS, SALT, EC and Temperature Multi Parameter Tester, Suitable for Swimming Pools, Aquariums, Drinking Water, Etc., Water Quality Tester, Suitable for Water Quality EngineersOpen in new tab.

16,26€

4.6 out of five stars

71 reviews71

2-in-1 Residual Chlorine Tester and PH Meter, Acidity Tester, Portable Digital Water Testing Kit, Suitable for Aquariums and Swimming PoolsOpen in new tab.

14,43€

5 out of five stars

7 reviews7

2Pcs Water Quality Testing Kit Tds Water Quality Testing Pen Ph Pen Acidity Meter Ec Ph Meter Tester Ph Test Pen, Non-Food ContactOpen in new tab.

10,82€

4.7 out of five stars

698 reviews698

TDS Meter Digital Water Tester 0-9990ppm Drinking Water Quality Analyzer Monitor Filter Portable Digital LCD TDS-M2 Meter PenOpen in new tab.

2,43€

4.7 out of five stars

5.121 reviews5.121

7-in-1 TDS/EC/PH/SALT/TEMPS/S.G./ORP multifunctional water quality testing penOpen in new tab.

20,83€

4.7 out of five stars

147 reviews147

Multi-function Water Quality Tester PH+TDS+EC+°C/°F+Salinity Dual Display on One Screen Backlit LCD Screen Calibratable Portable Water Quality Analyzer Suitable for Swimming Pools, Drinking Water, Pond and Koi Ponds, Aquaculture, Fish Tanks IP67Open in new tab.

22,66€

4.7 out of five stars

30 reviews30

NJTY 1pc 2025 Newly Upgraded Multi-Scene Water Quality Detector, Accurately Measures TDS. Suitable for Drinking Water, Aquariums, Swimming Pools, Hydroponics, Etc. Purple and White Available.Open in new tab.

3,30€

4.7 out of five stars

319 reviews319

2pcs TDS Meter Digital Water Tester Digital 0.0-14.0 PH Meter Tester 0-9990ppm TDS&EC LCD Water Purity PPM Aquarium FilterOpen in new tab.

8,71€

4.8 out of five stars

614 reviews614

5-In-1 Digital LCD Dual Display PH Meter Aquariums Hydroponic Fish Tank Salt TDS EC Temp PH Drinking Water Ppm Monitor ElectrodeOpen in new tab.

27,66€

4.9 out of five stars

36 reviews36

Two Digital TDS Water Testers, 0-14pH, 0-9990ppm TDS&EC, Equipped with EC, GH, KH, GPMGH PH Probes, Suitable for Swimming Pools, Aquariums, and Household Water UseOpen in new tab.

10,34€

4.8 out of five stars

345 reviews345

16-In-1 Home Drinking Water Quality Test Kit - 100 Strips Suitable for Swimming Pools, Aquariums, Spas, Faucets, And Well Water - Tests for Ph, Lead, Hardness, Chlorine, Iron, Copper, And MoreOpen in new tab.

6,81€

4.8 out of five stars

948 reviews948

Cloud Prime PH Tester Pen, 0.01 High Accuracy, Pocket Size, for Water Hydroponics, Household DrinkingOpen in new tab.

5,26€

4.6 out of five stars

319 reviews319

Digital Ph Meter Water Testing Pen with Temperature Display Function High Accuracy Automatic Calibration Suitable for Swimming Pool Drinking Water Fish Tank Hydroponics Water Quality Ph DetectionOpen in new tab.

23,59€

5 out of five stars

1 reviews1

Portable TDS Water Test Pen for Home UseOpen in new tab.

2,43€

4.7 out of five stars

1.686 reviews1.686

1pc 50/100 Strips 16 In 1 Drinking Water Test Kit Professional Hardness Testing Kits, Tap And Well Water Test Strips With Hardness, PH, Mercury, Lead, Iron, Copper, Chlorine, Chromium/Cr, Cyanuric AcidOpen in new tab.

7,56€

4.7 out of five stars

1.025 reviews1.025

LCD Color Screen Water Quality Testing Instrument PH Meter High-precision PH/EC/TDS/Salinity/Temperature 0-9999 Water TesterOpen in new tab.

13,75€

4.4 out of five stars

14 reviews14

The Seven in One TDS/EC/PH/SALT/TEMPS/S.G./ORP Multi-functional Portable Water Quality Testing Tool Is Suitable for Swimming Pools and AquariumsOpen in new tab.

23,10€

4.7 out of five stars

95 reviews95

Mini TDS Water Quality Testing PenOpen in new tab.

3,37€

4.8 out of five stars

5.311 reviews5.311

Professional PH Meter Water Quality Tester Acidometer PH Acidity Meter for Aquarium Acidimeter PH Detector Water Quality Measuring Pen Type Acidity Alkalinity Tester with Temperature Compensation 0-14 PH MeterOpen in new tab.

41,84€

4.8 out of five stars

51 reviews51

High Precision Water Quality TDS EC Tester Measurement Range for Aquarium Swimming PoolOpen in new tab.

5,92€

TDS Meter Digital Water Tester 0-9990Ppm Drinking Water Quality Analyzer Monitor Filter Portable Digital LCD TDS-M2 Meter PenOpen in new tab.

2,33€

4.8 out of five stars

1.170 reviews1.170

Cloud Prime Portable pH Tester Pen PH04 - Digital 0.01 Accuracy, Yellow, Battery-Powered for Indoor Water Quality Testing, Labs & Aquariums, Pool Water Tester DigitalOpen in new tab.

5,44€

4.8 out of five stars

306 reviews306

7-In-1 Multifunctional Water Quality Tester | Quickly And Accurately Assess Water Quality with This Single Pen. This Portable Device Combines Various Testing Functions, Allowing for Rapid Measurement of Key Water Quality Indicators Such As Ph, ECOpen in new tab.

22,45€

5 out of five stars

1 reviews1

GOXAWEE 1pc Digital Water TDS Meter PH Meter, TDS PH Meters, Water Testing for Drinking Water, Hydroponics, Seawater, Aquariums And SeawaterOpen in new tab.

4,29€

4.7 out of five stars

340 reviews340

Three in one professional water quality testing pen TDS EC thermometer water purity digital water quality testing instrumentOpen in new tab.

4,16€

4.7 out of five stars

1.411 reviews1.411

3-in-1 TDS Dual Color Backlight Household Water Quality Testing/ECConductivity/Temperature Testing Pen Aquarium Water Monitor Purified Water Check Easytouse Device Compact Design Lightweight Tester Reliable MeasurementOpen in new tab.

6,02€

4.7 out of five stars

485 reviews485

1pc White Digital Water Quality Tester TDS EC Meter Range 0 to 9990 Multifunctional Water Purity Temperature TEMP PPM TesterOpen in new tab.

4,30€

4.7 out of five stars

1.757 reviews1.757

Household Water Quality Testing Pen, High-precision 3-in-1 Backlit TDS/EC/TEMP Water Quality Testing Pen (batteries Not Included).Open in new tab.

8,22€

2pcs of PH TDS instrument digital water tester digital display 0-14 PH meter 0-9999ppmTDS&EC LCD water purity PPM water quality detection penOpen in new tab.

9,79€

4.7 out of five stars

469 reviews469

Digital Water Quality Tester 2pcs Set Dual Sensor with LCD Display - Measuring Ph/Tpds/Ec/Tds/Temp (0-14Ph 0-9999PPM) Includes Calibration Buffer Solution, Battery Powered, Ergonomic Design, Suitable for Laboratory/Aquarium/Swimming Pool/SpaOpen in new tab.

8,61€

4.7 out of five stars

125 reviews125

A 16-item drinking water and well water test kit accompanied by 100 test strips, capable of precisely detecting the pH value, hardness, chlorine, lead, iron, copper, nitrate, and nitrite, comprehensively guaranteeing the safety of water qualityOpen in new tab.

8,00€

4.8 out of five stars

691 reviews691

Water Quality Tester Ph Meter, Accuracy (±0.01), with High-Brightness Backlight LCD Display And Automatic Temperature Compensation Function Pool Ph Meter, Suitable for Drinking Water/Pool Water Analysis, YellowOpen in new tab.

8,05€

Cloud Prime Digital Display Water Quality Detection Pen, Available In Multiple OccasionsOpen in new tab.

3,40€

4.8 out of five stars

3.760 reviews3.760

New 21-In-1 Drinking Water Test Kit, 125 Water Quality Test Strips, 1 Bacteria Test All-In-One Kit, Home Water Test, Swimming Pool Water, Drinking Water, Aquarium Water, Suitable for PH, Hardness, Lead, Iron, Copper And Other Heavy MetalsOpen in new tab.

11,76€

4.9 out of five stars

11 reviews11

TDS Water Quality Tester, Osmosis Sensor, Minerals Filter, LCD Display + BatteryOpen in new tab.

7,14€

2pcs TDS Meter Digital Water Tester Digital 0-14 PH Meter Tester 0-9990Ppm TDS&EC LCD Water Purity PPM Aquarium Filter with BatteriesOpen in new tab.

10,02€

Portable Ph Meter And TDS/EC/TEMP 3-In-1 Water Quality Tester, Small Water Quality Detection Kit 1-14 Ph Value Test, 1-999 Ppm Turbidity Test, 0.01 High Precision Detection Tool, Suitable for LaboratoryOpen in new tab.

8,04€

4.8 out of five stars

82 reviews82

50/100 Strips 7-In-1 Water Quality Test Strips, Aquarium Test Strips, Swimming Pool Test Strips, Ph Test Strips, Free Chlorine Ph Water Quality Test StripsOpen in new tab.

4,81€

4.7 out of five stars

1.479 reviews1.479

5-In-1 TDS/EC/PH/SALT/TEMP Multifunctional Water Quality Testing PenOpen in new tab.

13,71€

50pcs 6-in-1 Pool & Hot Tub Test Strips - Quick Water Quality Testing for pH, Chlorine, Total Alkalinity, Cyanuric Acid, and Total Hardness | Color-Coded Results with Dropper Cap | Vibrant Design for Accurate Chemical Analysis in Above Ground Pools, Hot Tubs, and SpasOpen in new tab.

3,11€

4.7 out of five stars

521 reviews521

Water Quality Testing Pen, Temperature and More - Digital Screen, Battery Powered, Very Suitable for Aquariums, Swimming Pools, Drinking Water, Swimming Pool Water Quality Testers, Swimming Pool Water Quality, Modern Aesthetics, Durable BuildingsOpen in new tab.

22,02€

4.7 out of five stars

59 reviews59

Water Quality Test Strips 16 And 1 Monitor Tap Water And Mineral Water Well Water Streams, Etc. It Is a Good Helper for Family HealthOpen in new tab.

9,73€

4.8 out of five stars

241 reviews241

TDS Tester – Digital Meter, Water Checker | Portable Detection Tool for PPM Accuracy, LCD Display Testing Device for Aquariums, Drinking Sources, and Swimming Pool Maintenance at Home or LabOpen in new tab.

4,19€

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