Rank Product Name Score
1 Water Quality Tester, Accurate and Reliable, HoneForest TDS Meter, EC Meter & Temperature Meter 3 in 1, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums, etc. Water Quality Tester, Accurate and Reliable, HoneForest TDS Meter, EC Meter & Temperature Meter 3 in 1, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums, etc.
HoneForest
9.8 GET ON AMAZON
2 TDS Meter Digital Water Tester, Lxuemlu Professional 3-in-1 TDS, Temperature and EC Meter with Carrying Case, 0-9999ppm, Ideal ppm Meter for Drinking Water, Aquariums and More (LX-TDS1) TDS Meter Digital Water Tester, Lxuemlu Professional 3-in-1 TDS, Temperature and EC Meter with Carrying Case, 0-9999ppm, Ideal ppm Meter for Drinking Water, Aquariums and More (LX-TDS1)
Lxuemlu
9.6 GET ON AMAZON
3 TDS Meter, Water Quality Tester Filter Pen, Accuracy Testing Water Quality for Drinking Water Purity Test, Swimming Pools, Aquariums, Etc. TDS Meter, Water Quality Tester Filter Pen, Accuracy Testing Water Quality for Drinking Water Purity Test, Swimming Pools, Aquariums, Etc.
KOMITASUI
9.3 GET ON AMAZON
4 Water TDS Meter,WoEluone Water Quality Tester,0-9999ppm Meter,LCD Display,Accuracy Testing Water Meter for Drinking Water, Aquariums,RO System,Swinging Pool and More Water TDS Meter,WoEluone Water Quality Tester,0-9999ppm Meter,LCD Display,Accuracy Testing Water Meter for Drinking Water, Aquariums,RO System,Swinging Pool and More
NinHappy
9.1 GET ON AMAZON
5 HM Digital TDS-EZ Water Quality TDS Tester, 0-9990 ppm Measurement Range, 1 ppm Resolution, 3% Readout Accuracy HM Digital TDS-EZ Water Quality TDS Tester, 0-9990 ppm Measurement Range, 1 ppm Resolution, 3% Readout Accuracy
HM Digital, Inc.
9.0 GET ON AMAZON
6 TDS Meter Digital Water Tester,WoEluone Professional 3 in 1 TDS,Temperature and EC Meter,0-9999ppm Meter,Accurate Ideal PPM Meter for Drinking Water, Aquariums,RO System and More TDS Meter Digital Water Tester,WoEluone Professional 3 in 1 TDS,Temperature and EC Meter,0-9999ppm Meter,Accurate Ideal PPM Meter for Drinking Water, Aquariums,RO System and More
NinHappy
8.7 GET ON AMAZON
7 Dr. Lyn 3 in 1 TDS Pen Zero Water Quality PPM Tester Meter - 0-5000 PPM - for Hydroponics Growing Reverse Osmosis System - Aquaculture Colloidal Silver Beer Wine Pool Hardness Salinity - Leather Case Dr. Lyn 3 in 1 TDS Pen Zero Water Quality PPM Tester Meter – 0-5000 PPM – for Hydroponics Growing Reverse Osmosis System – Aquaculture Colloidal Silver Beer Wine Pool Hardness Salinity – Leather Case
PremiumSellerCo
8.4 GET ON AMAZON
8 Professional Water Quality Tester,EC TDS meter, 4 in 1 Portable High Precision Digital TDS PPM Meter, Ideal ppm Meter for Drinking Water, Hydroponics and Water purifier Professional Water Quality Tester,EC TDS meter, 4 in 1 Portable High Precision Digital TDS PPM Meter, Ideal ppm Meter for Drinking Water, Hydroponics and Water purifier
BBGPPG
8.3 GET ON AMAZON
9 【2021 Upgraded】TDS Meter Water Quality Tester,HASFINE Digital Conductivity Meter 3 in 1 TDS,EC and Temperature Meter, Accuracy Testing Pen 0-9999 PPM Meter for Drinking Water, Aquariums,Pool and More 【2021 Upgraded】TDS Meter Water Quality Tester,HASFINE Digital Conductivity Meter 3 in 1 TDS,EC and Temperature Meter, Accuracy Testing Pen 0-9999 PPM Meter for Drinking Water, Aquariums,Pool and More
HASFINE
8.0 GET ON AMAZON
10 TDS Tester, Water Quality Meter LCD Pen with 0-9990 PPM Measurement Range Portable for The aquaculture Industry Hospitals, Swimming Pools, Household tap Water Quality Testing (Blue) TDS Tester, Water Quality Meter LCD Pen with 0-9990 PPM Measurement Range Portable for The aquaculture Industry Hospitals, Swimming Pools, Household tap Water Quality Testing (Blue)
Q&C
7.9 GET ON AMAZON

Water Quality Tester, Accurate and Reliable, HoneForest TDS Meter, EC Meter & Temperature Meter 3 in 1, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums, etc.

Water Quality Tester, Accurate and Reliable, HoneForest TDS Meter, EC Meter & Temperature Meter 3 in 1, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums, etc.

    Features:

  • ✔ACCURATE AND RELIABLE: To achieve high accuracy, equipped with premium quality titanium alloy probe, and reliable Automatic Temperature Compensation (ATC) ensures reading always be accurate at various temperatures.
  • ✔MULTIFUNCTIONAL AND UPGRADED: Professional TDS, EC and Temperature Pen 3 in 1. Upgraded with big backlit LCD for easier reading, and auto-lock function for easier use.
  • ✔EASY AND INSTANTLY: Just turn TDS meter on and stir water gently, then stabilized readings will be auto-locked on LCD in seconds, and the tds ppm meter will shut off automatically if without operation over 2 minutes.
  • ✔MULTIPURPOSE TDS TESTER: Test the purity of drinking water to ensure it’s healthy, monitor if Reverse Osmosis (RO)/DI System works properly, whether filter need replaced, maintenance aquarium, hydroponics(test nutrients), pool and spa, etc.
  • ✔3 YEARS WARRANTY. And we offer 90 days Money Back Guarantee if not totally happy with the digital TDS water tester meter.

TDS Meter Digital Water Tester, Lxuemlu Professional 3-in-1 TDS, Temperature and EC Meter with Carrying Case, 0-9999ppm, Ideal ppm Meter for Drinking Water, Aquariums and More (LX-TDS1)

TDS Meter Digital Water Tester, Lxuemlu Professional 3-in-1 TDS, Temperature and EC Meter with Carrying Case, 0-9999ppm, Ideal ppm Meter for Drinking Water, Aquariums and More (LX-TDS1)

    Features:

  • ☑️【 TEST YOUR WATER】: How Pure is Your Water? With the push of a button, the TDS water tester can tell you your overall water purity level, which will be displayed on the screen in ppm (parts per million)
  • ☑️【 EASY TO USE AND ACCURATE】: Just stick it in about 1 inch of water instantly you get the reading. It’s compact and doesn’t need any maintenance. The TDS water tester is a rugged model that includes a protective carrying case with a belt clip
  • ☑️ 【AUTO-OFF AND HOLD FUNCTION】: The TDS tester shuts off automatically after 2 minutes of non-use to conserve batteries. Features a hold function that saves measurements for convenient reading and recording
  • ☑️ 【MEASUREMENT RANGE】: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1ppm. From 1000 to 9990 ppm, the resolution is in increments of 10ppm, indicated by a blinking ‘x10’ image
  • ☑️ 【CUSTOMER SATISFACTION】: We are very proud of our reputation for high-quality products & outstanding customer service, if there’s any question, please kindly feel free to contact us, we are 24 hours online

TDS Meter, Water Quality Tester Filter Pen, Accuracy Testing Water Quality for Drinking Water Purity Test, Swimming Pools, Aquariums, Etc.

TDS Meter, Water Quality Tester Filter Pen, Accuracy Testing Water Quality for Drinking Water Purity Test, Swimming Pools, Aquariums, Etc.

    Features:

  • Highly efficient and accurate due to its advanced microprocessor technology, one measurement can be completed within 5 seconds.
  • Built-in Digital Thermometer, Display: Large and Easy-to-read LCD Screen.
  • Long battery life cycle: It’s used with 2pcs 1.5V batteries, can use more than 3 years, it will be power-off automatically after stop using in 5 minutes to save the battery.
  • High accuracy: +/- 2% Readout Accuracy Testing, the titanium alloy probe has high test accuracy, which can avoid the interference of magnetic field in water.
  • Imported High-Quality Clip, warranty 3 years.

Water TDS Meter,WoEluone Water Quality Tester,0-9999ppm Meter,LCD Display,Accuracy Testing Water Meter for Drinking Water, Aquariums,RO System,Swinging Pool and More

Water TDS Meter,WoEluone Water Quality Tester,0-9999ppm Meter,LCD Display,Accuracy Testing Water Meter for Drinking Water, Aquariums,RO System,Swinging Pool and More

    Features:

  • ☑️ 【TEST YOUR WATER PURITY】: How pure is your water? With this lightweight conductivity meters pen can test the water purity, Just stick it in about 1 inch deep of water, then TDS water tester can tell you your overall water purity level, which will be displayed on the screen in ppm (parts per million).
  • ☑️ 【 LONG BATTERY LIFE CYCLE】:It’s used with 2 pcs 1.5V batteries(LR44), and it can be used more than 3 years, it will be power-off automatically after stop using in 5 minutes to save the battery.
  • ☑️ 【ACCURACY AND WIDE MEASUREMENT RANGE】: The premium Titanium Alloy Probe has high test accuracy in +/- 2% Readout Accuracy Testing, which can avoid the interference of magnetic field in water. Testing range from 0-9990 ppm, the resolution is in increments of 1ppm,indicated by a blinking ‘x10’ image.
  • ☑️ 【 EASY TO USE AND HANDY】: Just stick the TDS meter tester into the water of 1 inch deep, then stabilized readings will be auto-locked on LCD screen in seconds, TDS tester shuts off automatically after 3 minutes of non-use to conserve batteries. Features a hold function that saves measurements for convenient reading and recording.
  • ☑️ 【WHAT YOU GET】: TDS water tester, user manual, Preinstalled 2 pcs battery, leather case,our fan-favorite 3 year warranty and friendly customer service.

HM Digital TDS-EZ Water Quality TDS Tester, 0-9990 ppm Measurement Range, 1 ppm Resolution, 3% Readout Accuracy

HM Digital TDS-EZ Water Quality TDS Tester, 0-9990 ppm Measurement Range, 1 ppm Resolution, 3% Readout Accuracy

    Features:

  • Economy model that is ideal for end-users. Highly efficient and accurate due to its advanced microprocessor technology.
  • Hold Function: saves measurements for convenient reading and recording and battery life is approx. 1000 hours of usage and power source is 2 x 1.5V button cell batteries (included) (LR44 or equivalent)
  • Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. Display: large and easy-to-read LCD screen.
  • Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1ppm. From 1000 to 9990 ppm, the resolution is in increments of 10ppm, indicated by a blinking ‘x10’ image. Fun, translucent blue housing that’s very strong and durable.
  • TDS-EZ meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. Includes a TDS chart sticker on the back of the meter that explains TDS values.

TDS Meter Digital Water Tester,WoEluone Professional 3 in 1 TDS,Temperature and EC Meter,0-9999ppm Meter,Accurate Ideal PPM Meter for Drinking Water, Aquariums,RO System and More

TDS Meter Digital Water Tester,WoEluone Professional 3 in 1 TDS,Temperature and EC Meter,0-9999ppm Meter,Accurate Ideal PPM Meter for Drinking Water, Aquariums,RO System and More

    Features:

  • ☑️ 【 Upgrade LCD BACKLIGHT】Our water meter equipped with low-power backlight technology to test water at night or in dark places easily. It can also be used to distinguish between drinking water and non-drinking water. Red backlight(ppm>40) means this is non-drinking water.
  • ☑️ 【 ACCURATE AND WIDE MEASUREMENT RANGE】: The advanced 3 in1 (TDS, EC, Temperature) conductivity pen equipped with premium quality titanium alloy probe to achieve high accuracy, and reliable Automatic Temperature Compensation (ATC) ensures reading always be accurate at various temperatures. Testing range from 0-9990 ppm, the resolution is in increments of 1ppm,indicated by a blinking ‘x10’ image.
  • ☑️ 【TEST YOUR WATER PURITY】: With our slim and lightweight conductivity meters pen can test how pure is your water? Just stick it in about 1 inch deep of water, then TDS water tester can tell you your overall water purity level, which will be displayed on the screen in ppm (parts per million).
  • ☑️ 【 EASY TO USE AND HANDY】: Just stick the TDS meter tester into the water of 1 inch deep, then stabilized readings will be auto-locked on LCD backlight screen in seconds, TDS tester shuts off automatically after 2 minutes of non-use to conserve batteries. Features a hold function that saves measurements for convenient reading and recording.
  • ☑️ 【WHAT YOU GET】: 1 TDS water tester, 1 user manual, 1 preinstalled battery, 1 leather case, our fan-favorite 3 year warranty and 90 days money back guarantee if there is any problem with the digital TDS water tester meter.

Dr. Lyn 3 in 1 TDS Pen Zero Water Quality PPM Tester Meter – 0-5000 PPM – for Hydroponics Growing Reverse Osmosis System – Aquaculture Colloidal Silver Beer Wine Pool Hardness Salinity – Leather Case

Dr. Lyn 3 in 1 TDS Pen Zero Water Quality PPM Tester Meter - 0-5000 PPM - for Hydroponics Growing Reverse Osmosis System - Aquaculture Colloidal Silver Beer Wine Pool Hardness Salinity - Leather Case

    Features:

  • ULTIMATE SAFETY & QUALITY – Within 5 seconds you can learn the water quality with utmost accuracy and speed via this set of TDS Pen. Prevents water hardness risks and associated health issues with our TDS meter. This will easily safeguard every family from unfit water consumption. Premium quality probe and ACT ensures the water quality tester reads accurately at various temperatures
  • 3 IN 1 FUNCTIONALITY – This truly revolutionary, cutting edge and pristine quality TDS meter can test TDS, EC and temperature. Its measuring range of TDS is 0-9999 ppm with accuracy of ± 2% is one of the most unparalleled features on the market today. The superbly precise EC range is 0-9999 us/cm and the temp range is a robust 32.0-212°F- 0-99.0°C with accuracy of ±0.1℃. Multiple functionality at a fraction of the cost!
  • AUTOMATED USAGE – What good is a TDS meter if it can’t be operated with automated convenience? We have the solution! The reading result will be auto-locked on LCD in seconds. To ensure safety of the the power supply, the water tester will shut down automatically after 2 minutes stand by. Usages include: water hardness, wastewater plant, aquaculture, hydroponics, pool/spa, colloidal silver, ecology, food processing, cosmetics, wine, beer brewing, home and outdoor.
  • GREAT DESIGN AND LCD – Unlike traditional screens, our water tester pen is designed with advance LCD backlit display, which is easier and clearer for taking readings. The TDS meter is portable, versatile, dynamic and every family or individual’s superpower when it comes to water quality and safety! You can test water anywhere to know the hardness of drinking water. Trips, camping, resorts, hiking, travel, lakes, you name it! Includes a generous 3 year warranty. Comes with a compact leather case
  • 100% RISK FREE PURCHASE– We are a truly remarkable company offering one of the absolute best water quality testers on the market. Buy with utmost confidence. If for any reason you aren’t happy, simply contact us and we’ll replace or refund the product for you. 100% risk and hassle free! Your satisfaction is our utmost goal. ‘Add to Cart’ now and join thousands of people around the world who care for their health and that of their families! You owe the miracle of clean water to yourself!

Professional Water Quality Tester,EC TDS meter, 4 in 1 Portable High Precision Digital TDS PPM Meter, Ideal ppm Meter for Drinking Water, Hydroponics and Water purifier

Professional Water Quality Tester,EC TDS meter, 4 in 1 Portable High Precision Digital TDS PPM Meter, Ideal ppm Meter for Drinking Water, Hydroponics and Water purifier

    Features:

  • 4 in 1 UPGRADED 2019: Professional TDS, EC and Temperature Test Pen with big backlit LCD display for easier reading, and auto-hold function for easier use. Operation is very easy and quick, just put the water test pen in the water you need to test.Easy and fast operation. Unlike other ordinary water pens, this TDS pen’s unique metal temperature sensor allows you to get the most accurate reading faster and more accurately, in 3 seconds, away from water pollution. Drinking pure water is safer.
  • More user-friendly design. Unlike traditional screens, our water test pens use advanced LCD backlit displays for easy reading at night or in dark environments. They are small and portable, so you can test the water anywhere to get the most pure drinking water. The high-quality titanium probes ensure the accuracy of water test pens in a variety of environments, like traveling, camping, on holiday, hiking, lakes, etc.
  • Wide range of applications, for water purification, wastewater treatment, aquaculture, hydroponics, colloidal silver, scientific laboratories, pools, hot springs, ecology, food processing, physics/chemistry laboratories, cosmetics, home/office, motor homes, etc. The water test pen can give you a professional and accurate data to meet your needs.
  • Read the result simply and intuitively. The warning value is preset. The red light will illuminate when the reading value exceeds the warning value(40PPM), Indicates that water cannot be directly drunk or used. For special requirements, the warning value can be changed.
  • World Health Organization drinking water quality standards: drinking water ≤ 500PPM, high-purity drinking water ≤ 40PPM, the PPM value in the water is not known to the naked eye, the laboratory test has the instrument to test the bacteria in the water, but it takes 48 hours, very long time, and lab tests can cost you hundreds of dollars. You only need to buy a water test pen with a few US dollars, and the water test pen can be recycled, for your family enjoying pure water.

【2021 Upgraded】TDS Meter Water Quality Tester,HASFINE Digital Conductivity Meter 3 in 1 TDS,EC and Temperature Meter, Accuracy Testing Pen 0-9999 PPM Meter for Drinking Water, Aquariums,Pool and More

【2021 Upgraded】TDS Meter Water Quality Tester,HASFINE Digital Conductivity Meter 3 in 1 TDS,EC and Temperature Meter, Accuracy Testing Pen 0-9999 PPM Meter for Drinking Water, Aquariums,Pool and More

    Features:

  • ✅【TEST YOUR WATER PURITY】: With our handy TDS water meters can test how pure is your water? Just stick it in about 1 inch deep of water, then TDS water tester can tell you your overall water purity level, which will be displayed on the screen in ppm (parts per million).
  • ✅【 4 IN 1 MODEL FUNCTION】: Our advanced 3 in 1 ppm meter conductivity pen professional in TDS, EC and Temperature testing, 4 in 1 model for your free choice. And upgraded with big backlit LCD for easy reading, easily use with auto lock function.
  • ✅【 ACCURATE AND WIDE MEASUREMENT RANGE】: Equipped with premium quality titanium alloy probe to achieve high accuracy, and reliable Automatic Temperature Compensation (ATC) ensures reading always be accurate at various temperatures. Testing range from 1000 to 9990 ppm, the resolution is in increments of 10 ppm, indicated by a blinking ‘x10’ image.
  • ✅【 EASY TO USE AND HANDY】: Just remove the protective cap, press ON/OFF button, then stick the TDS meter tester into the water ( no more than 4 cm), waiting until the display stabilizes, the TDS meter will be auto-locked on LCD backlight screen in seconds, TDS tester shuts off automatically after 2 minutes of non-use to conserve batteries. Features a hold function that saves measurements for convenient reading and recording.
  • ✅【FAN-FAVORITE CUSTOMER SERVICE】: For any problems with our digital TDS water tester meter, please feel free to contact us, we will give you a perfect solutions within 24 hours.

TDS Tester, Water Quality Meter LCD Pen with 0-9990 PPM Measurement Range Portable for The aquaculture Industry Hospitals, Swimming Pools, Household tap Water Quality Testing (Blue)

TDS Tester, Water Quality Meter LCD Pen with 0-9990 PPM Measurement Range Portable for The aquaculture Industry Hospitals, Swimming Pools, Household tap Water Quality Testing (Blue)

    Features:

  • ★【FAST AND ACCURATE READINGS】– Just turn it on, dip in liquid and read display, no need to work with color charts or test strips; Large digital display makes it easy to read.
  • ★【AUTOMATIC CALIBRATION】– Water quality meter pen no need any adjustment screwdrivers, just finish the calibration with Auto calibration button and included buffer powders.
  • ★【PORTABLE DESIGN】– Handheld TDS tester pen style and compact carrying case makes it conveniently fits in your pocket or bag and goes anywhere.
  • ★【WIDE APPLICATION】– Ideal for home and laboratory Water Quality Meter applications, including drinking water, swimming pools, aquariums, hydroponics,Water filter pitcher etc.
  • ★【100% QUALITY WARRANTY】 — We supply Quality Warranty more than 6 months. If your Water Quality Meter LCD Pen was broken or you got a defective, please don`t hesitate contact our customer service team, they will serve you enthusiastically.

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