11 Best Digital Swimming Pool Water Tester

Updated on: November 2020

Best Digital Swimming Pool Water Tester in 2020


Solaxx MET01A SafeDip Digital Test Meter for pH, Chlorine, Salt and Temperature

Solaxx MET01A SafeDip Digital Test Meter for pH, Chlorine, Salt and Temperature
BESTSELLER NO. 1 in 2020

LaMotte ColorQ Pro 11 Digital Liquid Pool & Spa Chemical Water Testing Kit

LaMotte ColorQ Pro 11 Digital Liquid Pool & Spa Chemical Water Testing Kit
BESTSELLER NO. 2 in 2020
  • Only 5 drops for each liquid reagent required for test.
  • No color matching.
  • Trilingual instructions (English, Spanish and French).
  • 6-month warranty on parts and workmanship.
  • 5 minute auto-off function protects the battery life (2 AA batteries included).

eSeasonGear SALT-3050 Waterproof IP65 Meter, Digital Salinity PPM Temperature Tester for Salt Water Pool and Koi Fish Pond

eSeasonGear SALT-3050 Waterproof IP65 Meter, Digital Salinity PPM Temperature Tester for Salt Water Pool and Koi Fish Pond
BESTSELLER NO. 3 in 2020
  • Precalibrated at 3000 ppm salt (NaCl) at 25°C / 77°F
  • Built-in ATC sensor for automatic temperature compensation
  • Built-in salt (NaCl) conversion factor for meter calibration
  • Salt Range: 0-5000 ppm or 0.0-0.5 %
  • Temperature Range: 0-55 °C or 32-130 °F; Waterproof Rating: IP65

Aqua Chek Aqua Chek Trutest Digital Reader

Aqua Chek Aqua Chek Trutest Digital Reader
BESTSELLER NO. 4 in 2020
  • No visual color matching
  • Accurately reads Free Chlorine, Bromine, pH, and Total Alkalinity on test strips.Reads strips in only 15 seconds
  • Lightweight and water resistant.Large easy-to-read LCD screen
  • Test strip reader will only work with the TruTest Digital Test Strips (NP208) and appropriate timing for placing the strip on the read tray must be followed
  • Requires 2 AA batteries (not included).

Portable Digital 2 in 1 Water Quality PH and Chlorine Level CL2 Tester Meter for Swimming Pool Spa Drinking Water Quality Analysis Monitor (PH CL2 Chlorine Tester + Free Black Bag)

Portable Digital 2 in 1 Water Quality PH and Chlorine Level CL2 Tester Meter for Swimming Pool Spa Drinking Water Quality Analysis Monitor (PH CL2 Chlorine Tester + Free Black Bag)
BESTSELLER NO. 5 in 2020
  • SAFE to chlorine based tablet pool, pH needs to be correct. If pool water is not balanced correctly then the chlorine sanitizer won't be working at full strength killing germs and bacteria)
  • Water balance needs to be correct or it will affect the skin and eyes. pH should be neither too acidic nor basic in order to feel comfortable
  • CORROSION-FREE. (imbalanced pool can be corrosive to the liner, ladders and hand rail and other equipment such as the pump
  • Recommended Chlorine Level for pool and spa: 1.2 to 1.7ppm and 7.2 to 7.8ph for PH Level for pool and spa
  • COMES WITH FREE BLACK BAG , Easy to carry, No chemical agent need and easy maintenance

PoolLab 1.0 – 11 parameter pool water Photometer with Bluetooth

PoolLab 1.0 – 11 parameter pool water Photometer with Bluetooth
BESTSELLER NO. 6 in 2020
  • 11 Pool Parameters
  • Bluetooth Equipped
  • Waterproof
  • Fixed but changeable cuvette
  • *Suitable for saltwater pools / pools with salt electrolysis*

RISEPRO Chlorine Tester, CL2 Chlorine & pH Tester Swimming Pool Spa Water Quality Analysis PC-102B

RISEPRO Chlorine Tester, CL2 Chlorine & pH Tester Swimming Pool Spa Water Quality Analysis PC-102B
BESTSELLER NO. 7 in 2020
  • CHLORINE CALIBRATION – Using your pool water to prepare 1.5ppm Chlorine solution. Then use this solution for calibration against the tester for first time only. No more calibration unless using in another pool!
  • IF FAILURE OF CALIBRATION – If you failed to find the calibration point by using your 1.5ppm solution, please use traditional test strips to verify if it is 1.5ppm or not. Correct 1.5ppm Chlorine solution is a must for successful calibration!
  • TEST CHLORINE & PH LEVEL – After a first time calibration, you can quickly find out your ideal range for both Chlorine and PH level for your pool water. If your CL/PH is beyond the ideal range, you can adjust your CL/PH by adding required ingredients to restore back to ideal range.
  • FAST N’ SIMPLE METHOD – No more complicated and messy “traditional liquid Chlorine and pH kit”! RISEPRO® Pool Tester can check the Chlorine and pH of your pool water in a fast and simple way after a simple calibration against Chlorine solution!
  • FOR POOLS OR SPAS IN HOME SCALE – It serves as excellent DIY tool for any home scale’s pools or sps (NOT FOR SALTY WATER TYPE). Do not use for industrial or scientific purposes.

6-in-1 Electronic Pool and Spa Water Tester

6-in-1 Electronic Pool and Spa Water Tester
BESTSELLER NO. 8 in 2020
  • Material: Plastic, Color: Blue
  • Rugged water resistant housing
  • Commercial grade technology sensor, Easy push buttons
  • Large LCD readouts, Temperature F°/C° toggle button
  • Features auto power-off feature and low battery indicator, Last reading is saved until a new test is taken

pHin Smart Water Care Monitor for Pools, Hot Tubs and Spas - 24/7 Continuous Water Testing + Know When to Add Chemicals with Automatic App Notifications (New & Improved)

pHin Smart Water Care Monitor for Pools, Hot Tubs and Spas - 24/7 Continuous Water Testing + Know When to Add Chemicals with Automatic App Notifications (New & Improved)
BESTSELLER NO. 9 in 2020
  • SUPPORTS ALL WATER TYPES: Works with chlorine, bromine and salt water based hot tubs, pools and spas.
  • AUTOMATIC NOTIFICATIONS: The pHin app automatically alerts you when you need to adjust your chemicals and lets you know exactly how much of which chemicals to use. Works with Android and iOS.
  • TAKES GUESSWORK OUT OF ADDING CHEMICALS: Scan any supported chemical’s barcode and the pHin app will calculate how much to add to your water. Supports most major chemical brands.
  • SIMPLER POOL AND HOT TUB CARE: Instead of showing you continuously changing raw readings (over 1000 per week), pHin’s built-in intelligence creates customized recommendations based on your pool or hot tub’s unique measurements.
  • LIFETIME WARRANTY: Your pHin Smart Monitor has a lifetime warranty. If it ever fails while you are a paying subscriber, we will send you a new monitor free of charge.

eSeasongear SALT-3000 Meter, Digital Salinity PPM Temperature Tester for Salt Water Pool and Koi Fish Pond

eSeasongear SALT-3000 Meter, Digital Salinity PPM Temperature Tester for Salt Water Pool and Koi Fish Pond
BESTSELLER NO. 10 in 2020
  • Precalibrated at 3000 ppm salt (NaCl) at 25°C / 77°F
  • Built-in ATC sensor for Automatic Temperature Compensation
  • Built-in salt (NaCl) conversion factor for meter calibration
  • Thermometer displays in °C or °F
  • Please buy the SALT-3050 if you need a waterproof salt meter.

Solaxx Salt Dip 2-in-1 Salt Water Electronic Water Tester

Solaxx Salt Dip 2-in-1 Salt Water Electronic Water Tester
BESTSELLER NO. 11 in 2020
  • Rugged water resistant housing
  • Commercial grade technology sensor
  • Easy push buttons
  • Large LED readouts
  • Last reading is saved until a new test is taken

Choosing a Good Pool Water Testing Kit

With the many poo water testing kits, available, which one is right for you, and what's the best? This might clear it up.

1. pool chlorine
2. combined chlorine (chloramines)
3. pH
4. total alkalinity (TA)
5. calcium hardness
6. cyanuric acid (CYA)

Swimming pool chlorine is the sanitizer of the pool and should be kept between 1.5-3.5ppm. Your pH should be between 7.6-7.8, not 7.2. You will use too much pool acid to keep it at that level. Total pool alkalinity (TA) is between 80-100, calcium hardness between 150-250, and cyanuric acid between 20-40ppm.

The maximum you should allow for TDS is 1,500ppm. There is really nothing that can be done to lower your TDS short of draining some or all of the pool water and starting over again. The best thing is to take your water into your local pool store for a proper TDS test.

There are basically two types of water testing kits:
1. Dropper Water Testing Kit
2. Test Strips

CYA is a stabilizer for your chlorine and is used for only outdoor swimming pools. A good water testing kit will have a CYA reading. Careful reading should be taken for CYA as sudden drops or increases will cause your chlorine to lose its effectiveness.

The first is a dropper kit that should include readings for chlorine, combined chlorine, (chloramines) pH, alkalinity, and hardness. The most widely used type of dropper test kit is called the FAS-DPD K-2020 Taylor Reagent. These pool water test kits commonly use a type of "test tube" and eye dropper application.

Adding the Reagents to the water produces a change in the test water color. Then this color change is compared with the accompanying chart. Some kits may have you "count" the drops and do a little math to get the correct reading. The two main kinds of dropper systems are called DPD and OTO pool water testing kits.

DPD, or N,N Diethyl-1,4 Phenylenediamine Sulfate, measures the free chlorine as well as pH, combined chlorine, hardness, cyanuric acid, and alkalinity. It's also called the "pink test system" due to the chlorine will, at first, become pink in color. You need to keep your DPD pool water testing kit fresh and away from direct light as this may skew your readings. The best for your money is the FAS-DPD K-2020 Reagent Test Kit.

DPD is a little more time consuming and complex due to the proper "swirling" technique, but when properly done you'll find this system of tests is the most accurate.

OTO, or OrthoTOlidene is the other brand of dropper pool water test kit. This pool water testing kit can test for all readings, but usually test for chlorine and pH, and is often called the Duo Test Kit. If you're going for a less expensive brand then this would be the pool water testing kit for you. Designed for a pool or spa with a smaller bather load and for the do-it-your-selfer, it's a complete system in a convenient package for great swimming pool care.

The 2nd type of test kit is called Test Strips. These strips allow you to simply dip the strip into the pool water then compare the various squares on the strip to the corresponding chart. The strips should include the levels of chlorine, pH, alkalinity, and hardness.

These strips are fast and easy and eliminate the need for taking samples and counting drops. The basic 3 and 4 square strips can measure chlorine (sanitizer) pH, alkalinity, and hardness all at the same time. You can get these swimming pool chemistry readings within a matter seconds. Remember to follow the instructions carefully and don't take any shortcuts while testing your chemicals.

Use your best judgment and get the best water testing kit for your situation. Some people like the DPD or OTO water testing kit. Some like the Test Strips. The main issue is to test your water on a regular basis, no less than once per week, maybe even twice, to get the best pool water that you deserve.

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