Pool Checkers

Clear, safe pool water depends on the right balance, and guessing isn’t good enough. Hanna’s Pool Checkers are small handheld colorimeters that give you accurate digital readings in seconds. Unlike test strips or colour-matching kits, a Checker shows the exact value on its display, so you don’t have to judge shades by eye.

This collection covers the parameters that matter most for pool and spa care:

• Free chlorine: Check that your water is disinfected without being over-chlorinated. For very low levels, the Ultra Low Range Free Chlorine Checker measures in ppb.
• pH: Keep pH in the ideal range so chlorine works well and swimmers stay comfortable, with no stinging eyes or irritated skin.
• Alkalinity: Stable total alkalinity keeps pH from swinging, which protects your equipment and saves on chemicals.

Every Checker is built for easy everyday use. Fill the cuvette with a water sample, add the reagent and press a button. You get a clear digital result straight away. The pocket-sized design suits home pool owners, holiday homes, hotels, swim schools and pool service technicians alike.

Regular testing helps you spot problems before they turn into cloudy water, algae growth or damaged equipment. It also helps you use the right amount of chemicals, which saves money and is better for the environment.

Pair your Checker with matching reagents and calibration solutions to get reliable results all season.