Saltwater Aquarium Alkalinity Colorimeter (dKH) Checker® - Hanna Instruments

Hanna Instruments Alkalinity Checker The Hanna Instruments Alkalinity Checker delivers fast, reliable, and straightforward results for measuring water alkalinity in saltwater aquariums. This compact digital device is a must-have for reef hobbyists aiming to keep carbonate hardness (dKH) within a healthy range. Why Choose the Hanna Instruments Alkalinity Test Kit? Using an alkalinity test kit should be easy, and the Hanna Instruments Alkalinity Checker makes it just that. Instead of guessing colors from test strips or drop counts, this handheld colorimeter gives you a direct digital reading in dKH. That means less squinting and more confidence in your reef care. Key Benefits of This Water Alkalinity Test Kit: Direct dKH Readings: Eliminates color-guessing with crystal-clear digital results. Portable Design: Small enough to stash in a drawer or take on the go. One-Button Simplicity: No complicated instructions or learning curve. Fast and Accurate: Results in under a minute, accurate within ±0.3 dKH. Where the Hanna Instruments Alkalinity Checker Shines This water alkalinity test kit is ideal for: Saltwater Reef Tanks Aquaculture Operations Routine Water Quality Monitoring Its precise dKH readings help hobbyists stabilize pH and support coral skeletal development. Plus, since alkalinity plays a key role in calcium uptake, this checker becomes essential in any coral-focused system. Product Specifications Measurement Range: 0.0 to 20.0 dKH Resolution: 0.1 dKH Accuracy: ±0.3 dKH at 77°F (25°C) Light Source: LED @ 610 nm Light Detector: Silicon photocell Battery: (1) AAA 1.5V Auto-Off: After 10 minutes of inactivity Dimensions: 3.4 x 2.4 x 1.5 in Weight: 2.3 oz What Comes in the Box? (1) HI772 Hanna Instruments Alkalinity Checker Sample cuvettes and caps Reagents for 25 tests 1.5V AAA battery Instruction manual and quick-start guide Final Thoughts on the Hanna Instruments Alkalinity Checker Keeping saltwater alkalinity in check doesn’t need to feel like chemistry class. This pocket-sized powerhouse makes it painless. With digital precision, portability, and zero guesswork, the Hanna Instruments Alkalinity Test Kit is a practical upgrade from old-school methods. It’s the modern solution for anyone serious about reef tank stability.                 Navigate More Below         Browse other handheld checkers from Hanna Instruments Get reef-tested insight from our Reef2Reef crew Our Instagram is full of reef clips and gear shots—check it out Follow us on Facebook for salty updates and gear restocks