ICO
ICO Smart Wi-Fi Pool Water Monitor
- Tests pH, ORP (sanitizer), temperature & salt/TDS automatically every hour
- Zero monthly subscription fees—free iOS & Android Wi-Fi app included
- Exact chemical dosing instructions tailored to your pool's gallon volume
- Compact floating pod hides neatly under your skimmer lid or floats freely
- Choose Chlorine/Bromine ($449) or Salt Water Pool ($499) version
or 4 interest-free payments of $124.75 with
*Rates from 0% APR. Subject to eligibility check. See payment terms.
End Guesswork Test Strips & Prevent Green Water Before It Starts
Hourly Lab-Grade Readings
Measures pH, ORP (disinfection power), water temperature, and—on the Salt model—TDS/salinity 24 times every day.
Exact Dosing—No Subscriptions
Tells you exactly what chemical to add, how many ounces, and when—with zero recurring app subscription fees.
Weather-Aware AI Alerts
Cross-references local heatwaves and rainstorms to warn you before chlorine crashes or algae blooms.
Fits Inside Your Skimmer
Unlike bulky floating buoys, ICO is compact enough to sit discreetly inside most skimmer baskets out of swimmers' way.
Season-Long USB Battery
Rechargeable internal battery runs an entire swim season on a single USB charge—no AA batteries to swap.
Twist-Lock Replaceable Probes
Industrial plug-and-play sensors twist out in seconds for calibration or multi-year replacement; 2-year warranty.
Why ICO Is Our Pick Over Every Major Alternative
See the evidence behind each verdict. Every guide includes a side-by-side ownership table, the rival's genuine advantages, and the reasons ICO wins overall.
ICO vs WaterGuru S3
ICO gives most owners 24 cassette-free readings a day, flexible placement and individually replaceable probes.
See why ICO wins →
Winner: ICO PoolICO vs iopool EcO
ICO removes the powered gateway, recharges over USB and measures salt / TDS on the Salt model.
See why ICO wins →
Winner: ICO PoolICO vs Aiper HydroSync
ICO pairs a 6+ month charge interval with seasonal calibration and replacement probes sold at published prices.
See why ICO wins →
Winner: ICO PoolICO vs Crystal
ICO includes its full app without an annual fee, recharges over USB and can float or sit in the skimmer.
See why ICO wins →
Replacement guideICO vs Sutro
ICO is a supported, functioning monitor with hourly readings, no reagent cartridges and owner-replaceable probes.
See why ICO wins →
Replacement guideICO vs pHin
ICO restores automatic monitoring with an active app, direct Wi-Fi, no required subscription and replaceable probes.
See why ICO wins →
Your Robot Scrubs the Pool. ICO Balances the Water.
Even the best robotic cleaner can't stop green water if a summer thunderstorm or heatwave tanks your sanitizer while you're busy all week. ICO Pool floats quietly in your pool (or tucks out of sight inside your skimmer), taking hourly pH, ORP, temperature, and TDS readings over Wi-Fi and sending step-by-step dosing instructions straight to your phone—with no monthly subscription.
Which Version Should You Select?
- Chlorine / Bromine ($449): Tracks pH, ORP (chlorine/bromine disinfection effectiveness), and water temperature.
- Salt ($499): Tracks pH, ORP, water temperature, plus conductivity / TDS (salinity) with gold-plated salt-optimized electrodes.
ICO Smart Water Monitor Specs
ICO Smart Water Monitor FAQ
Does ICO Pool require a monthly or annual subscription?
No! Every feature in the ICO smartphone app—hourly history graphs, chemical dosing recommendations, weather alerts, and multi-user sharing—is included free with zero subscription fees.
Should I pick the Chlorine/Bromine version or the Salt version?
If your pool uses a salt-chlorine generator (SWG), choose the Salt version ($499)—it uses salt-compatible ORP electrodes and adds a TDS/conductivity sensor. For liquid chlorine, tablets, cal-hypo, or bromine pools, choose Chlorine / Bromine ($449).
Will my robotic pool cleaner bump into ICO?
ICO's rounded hull shrugs off gentle bumps, OR you can place ICO directly inside your pool's wall skimmer basket so your pool deck and water surface stay completely clear.
How often does the battery need charging?
Just once per swim season (roughly every 5–6 months) using the included USB cable.
We’re Here Long After Delivery Day
2-Year Manufacturer Warranty
Manufacturer-backed protection and help from authorized US service centers.
30-Day Returns
If it isn’t right for your pool, start a return within 30 days.
Fast, Free Shipping
Your cleaner ships fast and free on qualifying orders, ready for its first run.
Manufacturer: ICO Pool on Ondilo US
*Rates from 0% APR or 10–36% APR. Payment options through Shop Pay Installments are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. State notices to consumers: affirm.com/licenses.