Smart pool monitors are convenient but expensive

Probably, but they’re more of a convenience upgrade than a set-and-forget solution.

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 measure pH, chlorine, temperature, sometimes alkalinity and other levels. The big win: you stop guessing and can check trends over time.

The catch is cost. Expect to pay $300–500 for the device, then $50–100 per year for replacement sensors or test capsules. And they still don’t add chemicals for you—just tell you what to add. If you’re okay dropping a strip in the water twice a week, a smart monitor is overkill.

Also, they need periodic calibration and can be thrown off by high CYA or certain algaecides. Not a reason to skip one, but don’t trust it blindly. I’d still run a manual test every few weeks to confirm.

If you hate touching pool water and love gadget graphs, go for it. Otherwise? A good test kit and a weatherproof notebook work fine.