10 Best Pool Smart Water Monitor of 2025

Tested and Reviewed: Top 10 Pool Smart Water Monitor deals with expert ratings from 8.1 to a perfect 10

May 2025 Edition

Editor's Choice

9.7

Sutro

Sutro Pool & Spa Water Smart Monitoring Device | Tests Alkalinity, pH, Chlorine | Digital Water Tester

Free Shipping

Editor's bottom line:

“This pool smart water monitor is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

SMART POOL MONITORING MADE EASY: The Sutro Smart Pool Monitor simplifies pool and spa maintenance by automatically testing your waters pH, free chlorine, bromine (for spas), and alkalinity. Get real-time updates and customized treatment recommendations directly to your phone via the Sutro App.
COMPLETE SYSTEM FOR YOUR POOL OR SPA: Includes (1) Sutro Monitor (floats in your pool or spa), (1) Water test cartridge, (2) Rechargeable Li-Ion batteries, (1) Hub with charger base (extends range inside your home), and (1) US-110V adapter.
COMPATIBLE WITH ALL POOL TYPES: Ideal for chlorine, saltwater, bromine, mineral, ozone, and UV pools and hot tubs.
ACCURATE READINGS, ANYWHERE: Receive precise water chemistry readings straight to your smartphone, even when you're away. Keep your water balanced, clean, and swim-ready with minimal effort.
FLEXIBLE SUBSCRIPTION OPTIONS: After purchase, download the Sutro App (iOS or Android) and choose between our Basic Plan ($29/month) or Premium Plan ($39/month), which includes VIP support and an optional monthly consultation to optimize your pool care.

Show Price

Picked by 316 people today

9.5

Crystal Water Monitor

Crystal Smart Water Monitor for Salt Water Pools & Hot Tubs - 24/7 Continuous Digital Water Testing with App Notifications & Customized Chemical Dosing (New Model)

Free Shipping

Main Highlights

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.

Show Price

9.5

LanAqua

LanAqua Water Pool Monitor, 24/7 Continuous Smart Water Monitor with App, Digital Hot Tub Water Tester 7 in 1 pH Chlorine UV ORP LSI TDS Temp Device, pH Pool Monitor for Chlorine Pools & Swim Spas

Free Shipping

Main Highlights

: Our comprehensive pool monitor accurately measure pH, CL, ORP, TDS, UV, LSI(Langelier saturation index) and temperature every time you use it. Experience all-encompassing water quality measurement, helps you predict and control problems such as corrosion and scaling, ensuring safe and consistent water qualit.
: Water quality constantly changes due to factors like weather, time and usage.Traditional methods can't keep up with these changes, often resulting in inaccurate readings and unnecessary chemical use.LanAqua smart water monitor monitors the water quality of your pool or hot tub every moment and you can refresh the data at any time. More reliable than any single point-in-time sample of water or a test strip reading.
: You can set the maximum and minimum values for measurements and high/low values for CL/pH/UV/ORP/TEMP/TDS. If results are out of range, you can easily see the red exclamation mark reminder on the mobile page. The smart meter tester delivers real-time data, allowing you to monitor water conditions continuously. This feature enables prompt detection of changes or abnormalities, enabling timely action to maintain water quality.
: Say goodbye to tedious monthly replacement test item purchases competitive monitors require. Upgrade from confusing and inaccurate test strips with precise digital testing and save time taking individual water samples to your pool store. What's more, you can access pH, ORP, UV and temperature data anytime, anywhere with the digital hot tub water tester APP.
: LanAqua digital pool tester is an essential tool to improve your life quality.It can be applied in the following applications,drinking water quality test, swimming pools quality monitor, aquarium, spa or hydroponics.Dual calibration ensures accuracy.The included pre-mixed pH 4.0/7.0 calibration solution calibration solution. When you calibrate pH must start with the pH7.0 solution then pH4.0 solution.

Show Price

9.2

WaterGuru

Waterguru - Sense S2 Smart Pool Monitor - Chlorine & pH Meter - CYA & Alkalinity Tester Pool Water Tester - Spa & Hot Tub Monitor - Includes WaterGuru Sense S2 C5 Cassette, Float Ring & More

Free Shipping

Main Highlights

Your Smart Pool Solution - Our smart pool monitor balances your pool perfectly and saves you money on energy bills and over-treating. Discover how Water Guru Sense 2 delivers worry-free pool care in the palm of your hand, no manual water testing is required.
Easily Monitor Your Pool - Pool water can be deceptive. You need a digital pool water tester that reveals the unseen truth. The Water Guru Sense 2 comes with a patented optical sensor, a laminated-glass strip, and an integrated flow sensor for effortless pool testing.
Simplified Pool Care System - This smart device is an efficient pool chemical monitoring system that gives you precise pool water test readings. By accurately testing water quality, you can enjoy a pristine, clear, and balanced pool, ready for family, friends, and even pets to enjoy.
Get Expert Pool Advice - This is not like your ordinary pool test kit. The Water Guru Sense 2 also gives expert advice based on the precise data of your pool's chemical composition, size, and type.
Sense S2 Inclusions - Utilize everything you need for an optimal pool monitoring system. With saltwater compatibility, the WaterGuru SENSE S2 comes with the SENSE S2 C5 Cassette, 4 C Batteries, Float Ring for Spas and Above Ground Pools, and a Quick Start Guide.
Exclusive Compatibility - The WaterGuru SENSE S2 is compatible only with the WaterGuru SENSE S2 C5 Cassette (included with purchases), which measures Free Chlorine (FC), acidity (pH), Total Alkalinity (TA), Cyanuric Acid (CYA), and Calcium Hardness (CH). The C5 Cassette is designed to last 1 month based on daily water measurements. Alternatively, the S2 can use the SENSE S2 C2 Cassette, which measures Free Chlorine (FC) and acidity (pH) and lasts 2 months with daily water measurements.

Show Price

9.0

iopool.com

iopool Smart Water Monitor - Works for Chlorine & Bromine Pools, Hot Tubs, & Swim Spas - Gives Precise Dosage recommendations. !

Free Shipping

Main Highlights

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
EcO must always remain submerged in water. Prolonged exposure to air can damage the sensors.
Incompatible with salt-treated pools/spas. For this type of treatment, please consider EcO Start Salt + connect.
Replacement battery

Show Price

8.8

YINMIK

YINMIK pH Pool Monitor, Smart pH and Chlorine Tester for Swimming Pool, Salt Water Pool 7 in 1 pH Chlorine Salinity ORP EC TDS Temp Monitor for Inground Pool, Above Ground Pool, Spa, Hot Tub

Free Shipping

Main Highlights

pH Salt Tester for Saltwater Pool: YK-S03 greatly facilitates you to confirm the pH and salinity (ppm) level in the current pool when start using the salt chlorinator generator; Also work for weekly salt check, to ensure chlorinator running well, balance the salt, chlorine and pH level. Good helper for salt water pool
Free Chlorine and pH Tester: Recommends pH 7.2-7.8pH and free chlorine concentration of 1-3mg/L in pools; YINMIK pH and chlorine monitor can test both the free chlorine and pH, to know both levels are in the optimum range for clear pool
Anytime, Anywhere: Wireless connection. After the pH and salinity tester is connected to your smartphone, open the Tuya APP, can view real-time swimming pool data anytime and anywhere (APP is free)
Multifunctional 7 in 1 Pool Monitor: Monitor the pH, ORP, Salinity, Chlorine, EC, TDS, Temp value. Range: pH(0.0-14.0pH), Salinity (0-9990ppm), ORP(-999~+999mV), CL(0.0-4.0mg/L), EC(0-9990S/cm, 10.01-19.99mS/cm), TDS(0-9990ppm), Temperature(32.0-122.0); Professional pH ORP CL Salt tester for swimming pool, Above Ground Pool, Inground Pool, inflatable pool, Saltwater Pool, Chlorinated Pool, Spa, Hot Tub
Other Design you Need: Support solar charging and USB charging (very convenient for outdoor backyard pool); Floating design, Floating in the water; Support 2.4GHz WiFi connection; Easy to calibrate in the app. Packing List: Monitor; Tuya Gateway; pH Calibration Solution; Salt Calibration Solution; ORP Calibration Solution; Manual; Wrench; Measuring Cup

Show Price

8.6

Risinglink

Risinglink Smart Water Level Monitor, WiFi-Enabled, Text/Email Alerts, Indoor/Outdoor Detector, Battery Powered, Stainless Steel Float Sensor

Free Shipping

Main Highlights

Easy Setup: No need for apps or hubs, simply connect the device to your WiFi network(Note: only 2.4GHz WiFi supported). No monthly fees or subscription costs.
Multiple Notifications: Receive alerts via email and text message for high or low water levels, water level returning to normal, low battery, and device offline (WiFi connection lost). Compared to similar products from some other brands, which only provide alerts for high or low water levels, our product is much more intelligent.
Enhanced Alert Reliability: Risinglink allows you to register 2 phone numbers and 4 email addresses per device. Be cautious of competitors claiming to support multiple phones; some restrict direct text alerts to only one phone number, relying on unreliable Email-to-SMS services for the 2nd phone. Others depend entirely on Email-to-SMS for all alerts. If you and an additional contact, such as a spouse or coworker, need timely and reliable text alerts, Risinglink is the right choice for you!
Durable Construction: The stainless steel float sensor offers superior reliability and durability compared to plastic alternatives, and it features a 10-foot long cable for added convenience.
Effortless Installation: Easy to install the stainless steel float sensor. With its own weight, just hang the float sensor without the need for a mounting bracket.
Outdoor-Ready: The main controller is designed for outdoor use with an IP65 waterproof rating, ensuring durability and protection from the elements.
Intelligent Alert System: Proprietary algorithm prevents repetitive alerts triggered by water bouncing. After water level alert triggered, the device checks water levels every 5 minutes until normalization, and then sends an alert cancellation notification.
Long-Lasting Power: Powered by 3 included AAA batteries, eliminating the need for a power outlet. With smart power management, these new batteries can last for years under normal usage and a good Wi-Fi signal.

Show Price

8.3

TEKCOPLUS

Floating Smart Digital Pool Thermometer - 6-in-1 Bluetooth Water Meter, IP67 Waterproof, Tests EC, Salinity, pH, ORP, Temperature, Chlorine for Swimming Pools, Hot Tubs, Ponds

Free Shipping

Main Highlights

Water Quality Monitoring: The 6-in-1 Floating Smart Pool Monitor Measure EC, Salinity, pH, ORP, Temperature, and Chlorine. Suitable for all ages. Ensure quality and durability. Multiple variations available
Versatile Testing: Floating Smart Pool Water Includes 6 tests for endless water quality possibilities. Ideal for professionals and skill development. Suitable for all ages
Cutting-Edge Technology: Bluetooth Pool Water Meter Advanced technology for accurate readings. Ideal for researchers and water enthusiasts
Premium Build: Pool Water Testing Smart Device Durable materials provide long-lasting benefits. Suitable for various water conditions. Perfect for outdoor enthusiasts and researchers
User-Friendly Design: Wireless Floating Smart Pool Monitor Water Tester Detailed insights for various applications. IEasy to use and maintain with a unique feature. Solve water quality issues. Ideal for homeowners and professionals.
Download the "YINMIK" app, turn on the meter, and place the electrode into the solution. Wait for the reading to stabilize and switch between measurement modes (pH, SALT, EC, CL, ORP)
Press HOLD to lock the reading and long press to toggle the temperature display between °C and °F

Show Price

8.1

kactoily

Kactoily Pool Monitor Floating Wireless Pool Water Testing Smart Pool Device 4-in-1 pH/EC/TDS/Temp Digital Pool Water Tester for Pool & Hot Tub & SPA

Main Highlights

Long-Distance Monitoring: With display and probe distances of up to 980 feet. You can place the display in your living room or bedroom to check the indicators of your pool water.
4-in-1 Smart Pool Monitoring: Save time and effort with our 4-in-1 monitoring system, which measures pH, EC, TDS, and temperature of any swimming pool or spa. Perfect for in-ground or above-ground pools and hot tubs.
Cutting-edge Probe Technology: Our probes have been continually enhanced to deliver precise and stable data on swimming pool water quality (Please ensure to replace the protective caps from probes before use).
Waterproof Design: The pool water quality monitor's probe boasts an IP68 waterproof rating, ensuring it can be fully submerged in water for long periods (tighten cover as per instructions). Note that the display is not waterproof, so keep it away from water!
Power Supply: The display requires a USB Typec-c cable. The Probe needs 3*AAA batteries (Battery not included) for 1-3 months, the battery level of the probe is shown in the upper right corner of the display.

Show Price

Best Value

8.1

Save 17%

GoveeLife

GoveeLife Smart Pool Thermometer with WiFi Gateway, Digital Swimming Water Thermometer Temperature Monitor with IPX7 Waterproof, Remote App Notification Alert for Ice Bath Tub, Fishbowl, Pond, Hot Tub

17% OffFree Shipping

Main Highlights

Smart Remote Monitoring: With a connected 433 gateway (up to 328ft /100m), you can easily monitor your water temperature data in real time from anywhere with the App. The Wi-Fi gateway can be paired with up to 10 sensors, extending your monitoring range to any location indoor and outdoor.
More Accurate: The pool thermometer sensor can detect temperatures ranging from -4°F to 158°F, can accurately detect the temperature change of ±0.9°F, refresh speed up to 2S, double-click the internal button to switch °F/°C.
IPX7 Waterproof Protection: The GoveeLife Pool Thermometer is waterproof and can accurately measure temperature even when entering the water. You don't have to worry about water damaging it at all.
Free Date Storage & Export: The GoveeLife pool temperature monitor supports online viewing of 20-day data graphs and export of data recorded over the past 2 years. Ideal for swimming pools, paddling pools, hot tubs, fish ponds, jacuzzis, spas, etc.
Long-Lasting: The pool thermometer is powered by 2 AAA batteries, divided into standard mode and powersaving mode. Battery life is 1 year in standard mode and 3 years in powersaving mode (APP setting). When the battery is low, an alert icon appears on the screen and the app will also send a low battery notification. The product can also be linked to GoveeLife's wallsocket products to automatically turn the pool heat on and off.
Easy to Use and Install: The GoveeLife Pool Thermometer also comes with a rope to prevent the pool thermometer from floating away while taking readings! Need attention: The included orange loop rubber is replaceable to make the pool thermometer stand out on the water!
Need attention: It is better not to have obstacles between the gateway and the sub-device, otherwise it may affect the stability of signal transmission.(2.4Ghz WiFi Only)

Show Price

Our Best Overall Choice

Best Choice

9.7

Sutro

Sutro Pool & Spa Water Smart Monitoring Device | Tests Alkalinity, pH, Chlorine | Digital Water Tester

Free Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

SMART POOL MONITORING MADE EASY: The Sutro Smart Pool Monitor simplifies pool and spa maintenance by automatically testing your waters pH, free chlorine, bromine (for spas), and alkalinity. Get real-time updates and customized treatment recommendations directly to your phone via the Sutro App.
COMPLETE SYSTEM FOR YOUR POOL OR SPA: Includes (1) Sutro Monitor (floats in your pool or spa), (1) Water test cartridge, (2) Rechargeable Li-Ion batteries, (1) Hub with charger base (extends range inside your home), and (1) US-110V adapter.
COMPATIBLE WITH ALL POOL TYPES: Ideal for chlorine, saltwater, bromine, mineral, ozone, and UV pools and hot tubs.
ACCURATE READINGS, ANYWHERE: Receive precise water chemistry readings straight to your smartphone, even when you're away. Keep your water balanced, clean, and swim-ready with minimal effort.
FLEXIBLE SUBSCRIPTION OPTIONS: After purchase, download the Sutro App (iOS or Android) and choose between our Basic Plan ($29/month) or Premium Plan ($39/month), which includes VIP support and an optional monthly consultation to optimize your pool care.

Show Price

Related Deals You Might Like for Pool Smart Water Monitor

Smart AI Pool Alarm - Dual Camera Underwater Drown Monitor - Inground & Above Ground Pool Safety Guard (50ft Power Cord)

Show PriceView

Flume 2 Smart Home Water Monitor and Leak Detector – Real-Time Water Usage Tracking, Easy Installation, No Plumbing Required

Show PriceView

YoLink FlowSmart NSF Water Meter, Smart Water Usage Monitor and Water Leak Detection: 0.75 Inch Advanced Smart Home Water Meter, Hub Included, YS1603+YS5007

Show PriceView

YINMIK Salt Water Pool Monitor, WiFi pH and Salinity Tester for Swimming Pool, Smart Salt Pool Water Monitor 5 in 1, Floating Solar Charged Salt Monitor for Salt Water, Hot Tub, Spa, Jacuzzi, YK-FL05

Show PriceView

RYAKKA Smart Pool Monitor Solar Charged Digital Pool Water Tester for CL/PH/EC/TDS/ORP/Temp/Salinity for Pool, Spa, Hot Tub, Jacuzzis

Show PriceView

FreshWater Smart Monitoring Sensor - Smart Water Monitor for Spas & Hot Tubs - Smart Monitoring Sensor for Salt Systems - Sensor with Hourly Water Testing to Help Maintain Clean, Natural-Feeling Water

Show PriceView

Risinglink Smart Water Level Monitor, WiFi-Enabled, Text/Email Alerts, Indoor/Outdoor Detector, Battery Powered, Stainless Steel Float Sensor

Show PriceView

Raddy PT-3 Smart Pool Thermometer with 2 Additional Sensors, Digital Swimming Pool APP Monitor with IPX7 Waterproof, Remote App Notification Alert for Ice Bath Tub, Fishbowl, Pond, Hot Tub

Show PriceView

Bluetooth Swimming Pool Water Tester 6-in-1 EC/Salinity/pH/ORP/Temperature/Chlorine Meter, Wireless Floating Smart Pool Monitor Water Tester for Pools, Hot Tubs, & Swim Spas

Show PriceView

6-in-1 Bluetooth Swimming Pool Water Tester EC/Salinity/pH/ORP/Temperature/Chlorine Meter Wireless Floating Smart Pool Monitor Water Tester for Pools & Swim Spas

Show PriceView

Deals are Live

Special Amazon deal ends in: