Skip to main content

Free Shipping, 30-day trial and a low price guarantee on every robot. Talk to a Pool Pro

Free Shipping and a low price guarantee on every pump. Need help sizing a pump?

Hourly water readings and personalized guidance in the ICO app, with no subscription required. Ask a Pool Pro

UV systems are sized to your pump's flow rate. Talk to a Pool Pro before you order.

Can't find a part? We can usually source any pool or spa product.

Free tools for choosing and running pool equipment. See all tools or ask a Pool Pro.

Reviews are written by our in-house pool professionals from hands-on testing. How we test

Pool Water Monitors

Keep an eye on your pool chemistry from your phone with a smart pool water monitor. Compare monitors for chlorine, bromine, and saltwater pools that automatically track key readings and turn them into clear maintenance recommendations.

Products in Pool Water Monitors

2 products

Compare products

Open full page

Shop by type

Why shop at Pool Express?

With free shipping, a 30-day trial, and low price guarantee, we're proud to be one of the largest online retailers of all the top pool brands.

Free Shipping

Free shipping on every order to the contiguous United States. Estimated delivery: 1–5 business days after you order.

30-Day Trial

Try it in your pool for 30 days. If it is not right for you, return it within 30 days of delivery for a full refund of the purchase price.

Low Price Guarantee

Find an identical, in-stock item advertised for less by an authorized U.S. dealer and we match the price before you buy.

Pool Pros on the phone

Talk to our in-house pool professionals before and after the sale: 512-961-3881, Monday–Friday, 8:00 am–5:30 pm Central Time.