Looking for some of the best Best Pool Monitor? As you may know, there are dozens of brands available in the market such as Crystal Water Monitor,UIUZMAR,WaterGuru,Yewhick,Hofun and some come with vastly different price tags. Let us help you out here – we have handpicked the Best Pool Monitor for you.
To compile our list, we’ve researched and evaluated a range of the best-selling products on the market. We recommend Crystal Water Monitor Best Pool Monitor as our top pick because of its exceptional overall performance. Want to explore more options? Read on! There’s also a buying guide to help you make a wise shopping decision.
Editor's Choice
Crystal Smart Water Monitor for Chlorine & Bromine Pools, Hot Tubs & Swim Spas - 24/7 Continuous
Premium Pick
Pool Salt Tester & PH Meter, Hofun Digital Salinity Meter and PH Tester for Aquarium and Pool
Budget Pick
WaterGuru Sense S2 Smart Pool Monitor – Digital Pool & Spa Water Tester for Chlorine, pH, CYA &
Top 10 Best Pool Monitor
We researched and compared the top products in the Best Pool Monitor category to provide you with these recommendations.
1. Crystal Smart Water Monitor for Chlorine & Bromine Pools, Hot Tubs & Swim Spas - 24/7 Continuous
- SIMPLIFIED POOL & HOT TUB CARE: The Crystal Smart Water Monitor actively tests your pool or hot tub's water 1,000 times per week to give you personalized chemical recommendations that are much more reliable than any single point-in-time sample of water or a test strip reading. It's as simple as monitor, notify, and adjust.
- AUTOMATIC NOTIFICATIONS: The Crystal Water Monitor app automatically alerts you when you need to adjust your chemicals and provides precise chemical dosing recommendations customized for your pool or hot tub. Works with both Android and iOS.
- TAKES GUESSWORK OUT OF ADDING CHEMICALS: Scan your chemicals barcode once, and the Crystal Water Monitor app will customize your chemical dosing recommendations for your preferred chemical brand. Supports all major chemical brands.
- SUPPORTS CHLORINE & BROMINE WATER TYPES: Works with chlorine and bromine pools, hot tubs and swim spas. Saltwater version also available.
- THE CRYSTAL CLEAR CHOICE: While other smart monitors only sample your water once a day, Crystal continuously monitors it 144x a day providing the most accurate readings and dosing recommendations. Enjoy the freedom to use any of your preferred chemical brands instead of being forced to use proprietary ones. Say goodbye to expensive monthly replacement cartridge purchases competitive monitors require. Upgrade from confusing and inaccurate test strips with precise digital testing and save time constantly taking individual water samples to your pool store.
- RELIABLE SERVICE & SUPPORT: Complimentary first-year service and US based customer support with your Crystal Water Monitor. Renew for $99/year thereafter to continue to receive ongoing notifications, chemical dosing, service, support, and free replacement parts.
2. UIUZMAR Smart Pool Monitor, Floating Salt and pH Meter 5 in 1 pH Salinity TDS EC Temp Meter for
- [Monitor pH & Salinity with Ease] The UIUZMAR Smart Pool Monitor is designed to help you keep your saltwater pool or hot tub in top condition. With a glance at the smart app, you can check if your pool's pH (7.2-7.8) and salinity (2700-3400 ppm) are within the ideal range. This ensures your pool chemicals are properly balanced, so you can enjoy a clean, comfortable swimming experience without worry.
- [Multifunctional 5-in-1 Water Quality Testing] This versatile pool monitor tracks 5 essential water parameters in real-time: pH, salinity, EC (electrical conductivity), TDS (Total dissolved solid) and temperature. The wide measurement range: pH (0.0-14.0), salinity (0-9990 ppm), EC (0-9990 S/cm, 10.01-19.99 mS/cm), TDS (0-9990 ppm), and temperature (0.0-50.0), makes it perfect for all types of pools, spas, and hot tubs, including saltwater, chlorinated, ground, and inflatable pools.
- [Multifunctional 5-in-1 Water Quality Testing] This versatile pool monitor tracks 5 essential water parameters in real-time: pH, salinity, EC (electrical conductivity), TDS (Total dissolved solid) and temperature. The wide measurement range: pH (0.0-14.0), salinity (0-9990 ppm), EC (0-9990 S/cm, 10.01-19.99 mS/cm), TDS (0-9990 ppm), and temperature (0.0-50.0), makes it perfect for all types of pools, spas, and hot tubs, including saltwater, chlorinated, ground, and inflatable pools.
- [Convenient Solar & USB Charging No Batteries Needed] Say goodbye to constantly replacing batteries. The 5 in 1 pH and Salinity Tester features solar charging, making it ideal for outdoor use in pools and spas. It also supports USB charging for added convenience. Its floating design allows you to place it directly into the water, where it stays afloat and stable, without the risk of tipping or sinking during use.
- [Ready to Use with Calibration Solutions Included] The pH and Salinity Pool Monitor comes pre-calibrated, so you can start using it immediately, right out of the box. If calibration is ever needed in the future, the monitor can be easily adjusted using the included pH 7.00, pH 10.01, and 12.88mS calibration solutions. These calibration solutions ensure long-term accuracy, providing reliable readings for consistent water quality monitoring over time.
3. WaterGuru Sense S2 Smart Pool Monitor – Digital Pool & Spa Water Tester for Chlorine, pH, CYA &
- Exclusive Compatibility The WaterGuru SENSE S2 works exclusively with two cassette options: the C5 Cassette (included with purchase) and the C2 Cassette. The C5 Cassette lasts 1 month with daily measurements, while the C2 Cassette lasts 2 months with daily measurements.
- Fits Most Skimmers Adapters Available if Needed! WaterGuru SENSE S2 fits round skimmers between 8.25 and 9.4 without an adapter. For 10 square skimmers, use the WaterGuru Square Adapter. For round skimmers larger than 9.4, use the WaterGuru Circle Adapter. Both adapters are sold separately.
- Easy Installation Drop the device into your skimmer for fast setup. No test strips required. Step-by-step guides, FAQs, and troubleshooting are available in the WaterGuru App.
- Wi-Fi Setup Guidance Connects to your home Wi-Fi for automatic daily readings. For best performance, ensure the device is within 30 ft of your router or mesh node. If you experience connection issues, go to Your Orders, select your WaterGuru SENSE S2, and choose Get Product Support for assistance.
- Manufacturer Support Program Every customer has direct access to our US-based support team for help with setup, connectivity, or readings. For support, go to to Your Orders, select your WaterGuru SENSE S2, and choose Get Product Support for assistance.
- Reliable Pool & Spa Testing Measures five key water parameters daily: pH, free chlorine, cyanuric acid (CYA), total alkalinity, and hardness. Helps maintain balanced, clear water for safe swimming.
4. Yewhick Smart Pool Monitor with Gateway, Profession Salt Water Pool Testing kit for Swimming Pool, 7
- Comprehensive 7-in-1 Smart Pool Monitor: Equipped with an advanced detection head, the Yewhick digital pool water tester measurements of chlorine ,pH, SALT, ORP, EC, TDS, and temperature. This all-in-one solution ensures a safer, healthier, and perfectly balanced pool. We have also thoughtfully prepared a gateway for you, so that you can be the first to pair wifi, and quickly enjoy the intelligent pool value detection.
- Salt Tester for Saltwater Pool - Yewhick salinity Monitor can help check the salt level (Ideal level: 2700-3400 ppm) of the saltwater pool and hot tub with salt chlorinator system. Help the salt chlorinator work more efficiently in the appropriate salinity value.The Yewhick salt meter can help you keep your pool clean and avoid the negative effects of too much or too little salt on your body and pool equipment.
- Free Chlorine Monitor for Pool: The Yewhick digital chlorine Tester can quickly help you monitor the concentration of free chlorine ions in your swimming pool. For most pools, the free chlorine concentration range is usually between 1-3 ppm. This effectively purifies the water while keeping it clear and transparent, making the pool look more appealing and swimmers able to enjoy a healthy and pleasant swimming experience.
- Real-Time Smart pool chemical Monitoring : Wireless connection with your smartphone via the free Tuya App. Instantly access real-time pool data anytime and anywhere, ensuring convenient water quality monitoring. Supports solar and USB charging, ensuring reliable performance outdoors. The floating design makes it easy to use in any pool, and it supports 2.4GHz WiFi. Simple app calibration ensures accurate results.
- More Accurate Digital pH Monitor: With the latest chips and algorithms, you can get faster readings and more stable results. Maintaining the proper pH level is critical to the operation and maintenance of saltwater pools, and our pH meter can help you check the pH level of your pool regularly. Typically, the ideal pH range is between 7.2 and 7.8
- Pool Chlorine Monitor VS Pool Test Strips - When testing with test strips, you have to guess the value of your pool based on the color of the strips; however, free chlorine meter are simpler, more accurate, and friendlier to color-insensitive users than test strips. Simply place it in the water for a few seconds to get an accurate reading, plus, using enough test strips adds to the cost in the long run.
5. Pool Salt Tester & PH Meter, Hofun Digital Salinity Meter and PH Tester for Aquarium and Pool
- Wide Usage PH Meter : Hofun ph meter is an essential tool to improve your life quality. This digital ph tester can be applied in the following applications,drinking water quality test, swimming pools quality monitor, PH balance measurement in RO/DI system, aquarium, spa, hot tub or hydroponics.
- Three Display Designs for Salinity Test: PPM + PPT + %. For Swimming Pool Salt Test : 0-9999ppm; Seawater Test: 10-200ppt (1ppt=1000ppm, when ppm figure is over 9999ppm, the meter automatically changes to ppt ). For Food Test : 0.01-25%. So you dont have to calculate complex salt content level numbers between different units, which help you to avoid calculating mistake and also makes result-reading easier for you.
- Easy Operation for Salinity Test: When you want to use our pool salt tester, all you need to do is to turn the meter ON and click MODE button to shift to SALINITY function. This easy and convenient operation design is very considerate and offers premium experience. Wide Application Salinity Meter: Hofun digital water salinity test meter applies for multiple uses, like salinity test for swimming pool, Koi Fish, Seawater, Aquariums & Marine Monitoring.
- Reliable TDS Meter With Accurate & Quick Measurement : Hofun digital ppm meter is equipped with premium quality titanium alloy probe, which enables quick and accurate water quality test. Our water quality tester is with 0-9999ppm & 0-200ppt wide test range ensures different function of usage.
- Hofun Multiparameter water Test meter is equipped with 5 different functions for water quality test: Salinity + TDS + EC + pH + Temperature are combined perfectly in one meter. This is not only been convenient for your different water testing needs, but also saves your time and money, totally a helpful water test kit for your water quality safety.
6. Crystal Smart Water Monitor for Salt Water Pools & Hot Tubs - 24/7 Continuous Digital Water Testing
- SIMPLIFIED POOL & HOT TUB CARE: The Crystal Smart Water Monitor actively tests your pool or hot tub's water 1,000 times per week to give you personalized chemical recommendations that are much more reliable than any single point-in-time sample of water or a test strip reading. It's as simple as monitor, notify, and adjust.
- AUTOMATIC NOTIFICATIONS: The Crystal Water Monitor app automatically alerts you when you need to adjust your chemicals and provides precise chemical dosing recommendations customized for your pool or hot tub. Works with both Android and iOS.
- TAKES GUESSWORK OUT OF ADDING CHEMICALS: Scan your chemicals barcode once, and the Crystal Water Monitor app will customize your chemical dosing recommendations for your preferred chemical brand. Supports all major chemical brands.
- SUPPORTS SALTWATER TYPES: Works with saltwater pools, hot tubs and swim spas. Chlorine/bromine version also available.
- THE CRYSTAL CLEAR CHOICE: While other smart monitors only sample your water once a day, Crystal continuously monitors it 144x a day providing the most accurate readings and dosing recommendations. Enjoy the freedom to use any of your preferred chemical brands instead of being forced to use proprietary ones. Say goodbye to expensive monthly replacement cartridge purchases competitive monitors require. Upgrade from confusing and inaccurate test strips with precise digital testing and save time constantly taking individual water samples to your pool store.
- RELIABLE SERVICE & SUPPORT: Complimentary first-year service and US based customer support with your Crystal Water Monitor. Renew for $99/year thereafter to continue to receive ongoing notifications, chemical dosing, service, support, and free replacement parts.
7. Kactoily Smart Pool Monitor All-in-one Digital Water Tester 24/7 Chemical Monitor pH Chlorine Salt
- All-in-One Smart Water MonitorThis 7-in-1 digital water tester accurately testing pH, Free Chlorine, Salinity, ORP, EC, TDS, and Temperature. Replace test strips and separate kits with this all-in-one pool water tester for crystal clear water and simplified pool maintenance in your pool, hot tub, or spa.
- Durable Housing & Large LCD Display: The Smart Pool Water Tester is engineered from rugged, weather-resistant plastic for lasting poolside use. All 7 key water readings are clearly shown on the large LCD screen for easy water care.
- Precision Sensor & Season-Long Battery LifeIntegrated high-precision sensors deliver stable and accurate readings directly on the monitor. With 6x AAA batteries (included) and an auto-sleep mode, it supports continuous seasonal monitoring without frequent battery changes.
- Water Data Management & Easy CalibrationThe Multi-parameter pool water monitor provides comprehensive trend of your pool's chemical history. Simplify calibration and maintain long-term accuracy using the included calibration powders , ensuring reliable performance for all your water testing needs.
- Universal for All Pools & Hot TubsThis versatile smart pool chemical monitor works in all inground pools, above-ground pools, saltwater pools, and chlorine pools. The included floating ring ensures stable placement during testing.
8. Digital Pool Water Tester, 7-in-1 Smart Floating Meter, WiFi Enabled, Tests pH, Chlorine, Salinity,
- 7-in-1 Multi-Parameter Water Testing: Accurately measures pH, TDS, EC, free chlorine (CL), ORP, salinity (SALT), and water temperatureall with a single smart device. Perfect for maintaining balanced water in residential pools, spas, hot tubs, and saltwater systems.
- Real-Time Data Sync with Mobile App: Connect to the Tuya mobile app via WiFi to monitor your pools water quality in real-time. Receive instant alerts when readings are outside of your set range, ensuring you can act quickly to maintain ideal water conditions.
- Simple Setup & Continuous Monitoring: Enjoy hassle-free setupjust long-press to pair the device with your app. Its floating, waterproof design allows for hands-free, ongoing water quality monitoring on your pool, hot tub, or spa surface.
- Solar-Powered & USB Charging Support: Powered by an eco-friendly solar panel, the unit stays charged on sunny days. A USB backup charging port ensures you never run out of power, giving you flexibility for extended use and reliability in all conditions.
- Family & Service Team Sharing: Multi-user functionality enables family members or pool service professionals to access water quality data simultaneously. Ideal for pool owners seeking efficient, easy-to-manage water care, ensuring a safe swimming environment at all times. Important: Before placing the device in water, ensure the USB port and power knob are tightly sealed to prevent water damage. Double-check the seals before each use to maintain the unit's safe and reliable performance.
9. ThermoPro Waterproof Wireless Pool Thermometer Easy Read, Digital Pool Thermometer Floating for
- This sensor/transmitter is specially designed for measuring the water temperature in swimming pools, hot tubs, spas and so on. If monitoring ambient/outdoor air temperature, it may be inaccurate
- More Durable SensorFloating pool thermometer is designed with lPX8 waterproof and high-quality ABS materials, ensuring it can withstand exposure to pool water and various weather conditions for long time! Ensure mental parts are properly aligned and press them together firmly to ensure waterproof performance (The alignment marks on the edges of the upper and lower parts are aligned.)
- Higher AccuracyThis pool temperature sensor features highly precise sensor, accurate to 0.9(.0.5) in the temperature range of 32F to 140F. Sensor temperature range: -40-158, suitable for ice bath, hot tubs, cold plunge, babybath, hot springs, ponds and aquarium
- 500FT Longer RangeUsing RF technology for more stable connectivity, this pool temperature thermometer maintains a stable connection up to 500 feet, letting you check your pools temperature remotely from indoorsno need to step outside!
- Larger Backlight Display Swimming pool thermometer wireless with temperature and humidity monitor features a large backlit screen for easy readability in low light, along with 24-hour max/min temperature memory to track temperatures throughout the day!
- Hassle-Free SetupThe digital pool thermometer wireless and receiver come pre-paired for instant usejust unbox and start monitoring. Includes AAA batteries for power and string
- Perfect GiftThermopro floating wireless pool thermometer is delivered in an elegant box, making it the practical gift for men or women, dad or friends, husband or wife, also the must-have gift for swimming lovers!
- New VersionUpgrade a "Mode" button to toggle between pool and hot tub settings, ensuring precise comfort indicator for your family to enjoy the water play safely and comfortably
10. iopool Smart Water Monitor - Works for Chlorine & Bromine Pools, Hot Tubs, & Swim Spas - Gives
- Compatible with Chlorine, Bromine and Active Oxygen
- Not Compatible with Salt water
- Real-time analysis of your pool water. iopool advises you on the precise treatments to be carried out to have a safe and clear water continuously.
- Guided pool care: iopool guides you through all the steps of the maintenance process to ensure safe and clear water for you and your family. You can also receive personalized alerts based on the actions to be taken.
- App: Get access to the evolution of your water over time through the history feature. Share the iopool app with your neighbor when you are on vacation!
- Eco Start pack: EcO probe + Bluetooth Wi-Fi Gateway + Unlimited and complete access to the app for life
Peter
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