Checkers & Monitors

Simple, Fast & Accurate Water Testing

The benefits of using Hanna Instruments Checker Colorimeters.

Hanna Checkers use digital colorimetry to remove guesswork and deliver consistent, repeatable readings. Simple operation and clear digital results make testing easier, faster, and more trustworthy.

• More accurate than visual color-matching test kits.
• Digital readout eliminates subjective interpretation.
• Fast results in just a few minutes.
• Replaces hard to use liquid test kits
• Consistent results = stable water chemistry for a healthier, more robust reef aquarium.