5 Things to Know About Smart Pool Monitors

They measure pH, chlorine, and temperature Most smart monitors float in the water and send readings to your phone via Bluetooth or Wi-Fi. Brands like Sutro, iopool, and WaterGuru are the main players.

They cost $300–500 upfront The device itself is expensive, and you’ll also pay $50–100 per year for replacement sensors or test capsules. That’s a lot for a convenience upgrade.

They don’t add chemicals for you The monitor only tells you what to add—you still have to do the work. If you’re fine testing with a strip twice a week, a smart monitor is overkill.

They need periodic calibration High CYA or certain algaecides can throw off readings. Don’t trust it blindly; run a manual test every few weeks to confirm.

They’re best for gadget lovers who hate testing If you enjoy data graphs and dislike touching pool water, a smart monitor is worth it. Otherwise, a good test kit and notebook work fine.