Rank Product Name Score
1 VIVOSUN pH and TDS Meter Combo, 0.05ph High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter, UL Certified VIVOSUN pH and TDS Meter Combo, 0.05ph High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter, UL Certified
VIVOSUN
9.7 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 Tester, TDS Meter Tester LCD Pen Quality with 0-9990 PPM Measurement Range Portable, for The aquaculture Industry Hospitals Swimming Pools Household tap Water Quality Testing TDS Tester, TDS Meter Tester LCD Pen Quality with 0-9990 PPM Measurement Range Portable, for The aquaculture Industry Hospitals Swimming Pools Household tap Water Quality Testing
ALBB
9.5 GET ON AMAZON
4 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
9.4 GET ON AMAZON
5 Digital TDS Meter, Ideal Water Quality Tester Pen for Drinking Water, 0-9990 ppm, EC & Temperature Meter 3 in 1,PPM Meter Pen for Hydroponics Aquarium Tds Water Tester Digital TDS Meter, Ideal Water Quality Tester Pen for Drinking Water, 0-9990 ppm, EC & Temperature Meter 3 in 1,PPM Meter Pen for Hydroponics Aquarium Tds Water Tester
LuoLeiNa
9.2 GET ON AMAZON
6 PH Meter and TDS Meter,Digital Water Quality Tester-0.01 High Resolution Pen Type pH Meter and 3-in-1 TDS EC Temperature Meter with Mineral Tester for Drinking Water, Pool, Aquarium, Laboratory PH Meter and TDS Meter,Digital Water Quality Tester-0.01 High Resolution Pen Type pH Meter and 3-in-1 TDS EC Temperature Meter with Mineral Tester for Drinking Water, Pool, Aquarium, Laboratory
MOSUNECE
9.1 GET ON AMAZON
7 TDS Meter Digital Water Tester - ppm Meter, EC & Temperature Test Pen 3-in-1 | Easy to Use Water Quality Tester | Ideal for Testing RO Drinking Water Hydroponics Aquarium Swimming Pool & More | Green TDS Meter Digital Water Tester – ppm Meter, EC & Temperature Test Pen 3-in-1 | Easy to Use Water Quality Tester | Ideal for Testing RO Drinking Water Hydroponics Aquarium Swimming Pool & More | Green
Health Metric
8.7 GET ON AMAZON
8 HASFINE TDS Meter Water Quality Tester, Professional 3 in 1 TDS,EC and Temperature Meter, Accuracy Testing Pen 0-9999 PPM Meter,Digital Conductivity Meter for Drinking Water, Aquariums,Pool HASFINE TDS Meter Water Quality Tester, Professional 3 in 1 TDS,EC and Temperature Meter, Accuracy Testing Pen 0-9999 PPM Meter,Digital Conductivity Meter for Drinking Water, Aquariums,Pool
HASFINE
8.6 GET ON AMAZON
9 LuoLeiNa Digital Water TDS Meter, Water Quality Digital LCD Pen PPM Tester for Testing Liquid’s ppm with ±2% Accuracy 0-9 990ppm Measurement Range for Hydroponic Nutrient, Drinking Water and Aquarium LuoLeiNa Digital Water TDS Meter, Water Quality Digital LCD Pen PPM Tester for Testing Liquid’s ppm with ±2% Accuracy 0-9 990ppm Measurement Range for Hydroponic Nutrient, Drinking Water and Aquarium
Luoleina
8.3 GET ON AMAZON
10 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
8.3 GET ON AMAZON

VIVOSUN pH and TDS Meter Combo, 0.05ph High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter, UL Certified

VIVOSUN pH and TDS Meter Combo, 0.05ph High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter, UL Certified

    Features:

  • Great for all home and laboratory TDS & pH testing applications including aquariums, swimming pools
  • pH meter: Full measurement range of pH 0 – 14, reliable and quick readings
  • 3-in-1 TDS meter: Measurement Range 0-9990ppm, 0-9990µs/cm; Accuracy ± 2%, 0.1- 80.0°C, 32.0-176.0°F. Note: This meter can’t test sea water.
  • Comes with protective case; Lightweight, handheld design for portability and convenience
  • Due to recently reviews about 1413 solution, please note that TDS Meter had been calibrated by 1413 solution in advance; You can use it directly and it could last for 1 year without second calibration; So 1413 calibraiton solution is not included

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

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

    Features:

  • 1.★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.
  • 2.★Automatic Calibration: No need any adjustment screwdrivers, just finish the calibration with Auto calibration button and included buffer powders.
  • 3.★Portable Design: Handheld pen style and compact carrying case makes it conveniently fits in your pocket or bag and goes anywhere.
  • 4.★Wide Application: Ideal for home and laboratory TDS testing applications, including drinking water, swimming pools, aquariums, hydroponics, etc.
  • 5.【100% QUALITY WARRANTY】 — We supply Quality Warranty more than 6 months. If your TDS Pen was broken or you got a defective, please don`t hesitate contact our customer service team, they will serve you enthusiastically.

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.

Digital TDS Meter, Ideal Water Quality Tester Pen for Drinking Water, 0-9990 ppm, EC & Temperature Meter 3 in 1,PPM Meter Pen for Hydroponics Aquarium Tds Water Tester

Digital TDS Meter, Ideal Water Quality Tester Pen for Drinking Water, 0-9990 ppm, EC & Temperature Meter 3 in 1,PPM Meter Pen for Hydroponics Aquarium Tds Water Tester

    Features:

  • ☑️【 WIDE USAGE 】TDS water quality – Drinking Water,Laboratory,Hydroponics,Aquarium,Swimming Pool,RO/RD system,food & beverage, whole house filtration system water,res tank ,spring water,ppm tested works well.
  • ☑️【 ADVANCED 3-in-1 】Smart pen combines TDS, EC, and a temperature meter for improved accuracy. With an Automatic Temperature Compensation and the measuring range of 0-9999 ppm +/- 2%, it is an extremely handy device to have around.
  • ☑️【 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)
  • ☑️【MEASUREMENT RANGE 】Easy-to-read backlit LCD screen,TDS: 0-9999 ppm Conductivity: 0-9990 μs/cm Temperature range: 32-176°F and 1-80°C. Battery: 1 x 3V Button Cell CR2032 Auto data-hold: lock and record readings Auto-off function for extended battery life , It is easy to use, the large back lit color-coded display is helpful and easy to read without glasses. It’s light and fairly easy to carry in a pocket while working in the garden. Seems to be reliable
  • ☑️【 WHAT IS TDS 】TDS = Total Dissolved Solids, which is any salt, metal or mineral in the water. The lower the TDS level in the water, the more efficiently your bodys cells can use the water. Conversely, higher TDS levels can indicate water that is more difficult for your body to use and has more contaminants that can pose health risks.

PH Meter and TDS Meter,Digital Water Quality Tester-0.01 High Resolution Pen Type pH Meter and 3-in-1 TDS EC Temperature Meter with Mineral Tester for Drinking Water, Pool, Aquarium, Laboratory

PH Meter and TDS Meter,Digital Water Quality Tester-0.01 High Resolution Pen Type pH Meter and 3-in-1 TDS EC Temperature Meter with Mineral Tester for Drinking Water, Pool, Aquarium, Laboratory

    Features:

  • 【3-in-1 TDS meter】: Measurement Range 0-9990ppm, 0-9990µs/cm; Accuracy: ±2%, 0.1- 80.0°C, 32.0-176.0°F. 3 in 1 TDS meter can measure TDS, EC and Liquid Temperature in Fahrenheit or Degree Celsius. Note: This meter can’t test sea water.
  • 【PH Meter】: 0.01 High Accuracy Hand-held PH Meter. PH measure range: 0~14PH, Accuracy: ±0.01 PH. The PH meter can tell you the acid-basic value. PH have the function of Automatic Temperature Compensation, the measuring data won’t be influenced by the water temperature but influenced by the air temperature.
  • 【QUICK READ AND EASY USE】: With the help of PH Tester and TDS Tester, you can acknowledge the water quality and the PH data in 5 seconds. TDS tester and PH tester have small size and low weight, easy to be carried, Comes with protective case, convenient for you to take it when go outside.
  • 【EXTENSIVE USE】: Great for all home and laboratory TDS & pH testing applications including aquariums, swimming pools, testing drinking water, RO system or hydroponics. As Well, You Can Calibrate the Tester with One Touch Button Using Buffer Powder. Please Ensure There Is No Water In PH & TDS Meter After Use. Otherwise They Will Rust.
  • 【EXCELLENT AFTER-SALES】: If you have any questions about the PH Meter and TDS Meter Combo, please feel free to contact us and let us know how to make it better. We will provide the best after-sales service.

TDS Meter Digital Water Tester – ppm Meter, EC & Temperature Test Pen 3-in-1 | Easy to Use Water Quality Tester | Ideal for Testing RO Drinking Water Hydroponics Aquarium Swimming Pool & More | Green

TDS Meter Digital Water Tester - ppm Meter, EC & Temperature Test Pen 3-in-1 | Easy to Use Water Quality Tester | Ideal for Testing RO Drinking Water Hydroponics Aquarium Swimming Pool & More | Green

    Features:

  • ✅ OUR SIMPLEST, FASTEST TDS METER YET – Just dip in the meter, stir, and get your results in seconds. No calibration or setup needed, you can use it straight out of the box. Follow the step-by-step instructions then check the easy-to-read screen.
  • ✅ UPGRADED ACCURACY THAT LASTS – With the titanium alloy probe and the latest sensors, you can get almost exact readings every time. What’s more, the meter can be easily recalibrated for extended precision whenever needed.
  • ✅ SUITABLE FOR ANY TYPE OF TDS OR EC TESTING – Check the TDS or EC of your aquarium, pool, or any water source. You can determine the effectiveness of your RO, DI, or distillation unit, check the nutrient levels of your hydroponic setup, and more.
  • ✅ RESULTS YOU CAN UNDERSTAND – Your free user guide explains exactly what the results mean, and what you may want to do about them. If you have any questions, just ask our team of EPA water quality experts. We’re here to help!
  • ✅ SAVE THE MONEY AND HASSLE – Instead of forking out for an expensive lab test or professional equipment, you can get reliable results from home. This ppm meter can also be taken anywhere with you in the free leather case, ready to test on the go.

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

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

    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.

LuoLeiNa Digital Water TDS Meter, Water Quality Digital LCD Pen PPM Tester for Testing Liquid’s ppm with ±2% Accuracy 0-9 990ppm Measurement Range for Hydroponic Nutrient, Drinking Water and Aquarium

LuoLeiNa Digital Water TDS Meter, Water Quality Digital LCD Pen PPM Tester for Testing Liquid’s ppm with ±2% Accuracy 0-9 990ppm Measurement Range for Hydroponic Nutrient, Drinking Water and Aquarium

    Features:

  • 【 WHAT IS TDS 】TDS = Total Dissolved Solids, which is any salt, metal or mineral in the water. The lower the TDS level in the water, the more efficiently your bodys cells can use the water. Conversely, higher TDS levels can indicate water that is more difficult for your body to use and has more contaminants that can pose health risks.
  • 【MEASUREMENT RANGE 】TDS: 0-9999 ppm Conductivity: 0-9990 μs/cm Temperature range: 32-176°F and 1-80°C. Battery: 1 x 3V Button Cell CR2032 Auto data-hold: lock and record readings Auto-off function for extended battery life ,easy-to-read backlit LCD screen
  • 【 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)
  • 【 ADVANCED 3-in-1 】smartpen combines TDS, EC, and a temperature meter for improved accuracy. With an Automatic Temperature Compensation and the measuring range of 0-9999 ppm +/- 2%, it is an extremely handy device to have around.
  • 【 WIDE USAGE 】tds water quality – Drinking Water,Laboratory,Hydroponics,Aquarium,Swimming Pool,RO/RD system,food & beverage

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!

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