The Hanna Instruments Marine Alkalinity Checker HC (HI755 / HI772) is a pocket-sized, single-parameter digital colorimeter engineered to eliminate the guesswork of tracking reef aquarium water chemistry [HI755-26, HI755]. Rather than struggling to spot subtle color shifts on a paper chart with standard titration test kits, this handheld device utilizes a precise optical system to analyze your water sample colorimetrically [HI755-26]. It provides a fast, lab-grade digital reading on a high-contrast LCD screen to help you maintain stable carbonate hardness and buffer levels for optimal coral skeletal growth [HI755-26].
📐 Technical Specs
Product Options: HI755 (displays results in ppm) or HI772 (displays results in dKH) [HI755-26]
Measurement Resolution: 1 ppm (HI755) / 0.1 dKH (HI772)
Measurement Accuracy: ±5% of reading at 25°C
Optical System: LED Light Source @ 610 nm with a Silicon Photocell
Battery Power: 1x 1.5V AAA battery (with a smart 10-minute auto shutoff)
🌟 Key Benefits
Digital Precision: Gives you an exact digital readout, removing the human error and subjective interpretation tied to standard visual liquid test kits [HI755-26].
Dedicated Single-Parameter Design: Compact, ergonomic, and contoured to fit perfectly in your hand or right next to your sump for quick daily testing.
Effortless One-Button Operation: Simply zero the meter with your unreacted sample tank water, add the liquid reagent, and press the button again to view your final reading.
Liquid-Only Reagent Convenience: Uses a simple liquid dosing reagent, letting you fill your testing syringes quickly without having to tear or pour messy powder packets [HI755-26].
📦 What's In The Box?
1x Handheld Marine Alkalinity Checker HC [HI755]
2x Glass Sample Cuvettes with Airtight Sealing Caps [HI97105C / HI97115C]
1x Starter Bottle of Marine Alkalinity Liquid Reagent (good for up to 25 tests)
1x 1 mL Graduated Syringe with a Specialized Plastic Dosing Tip
1x 1.5V AAA Battery & Comprehensive Instruction Guide
The Hanna Instruments Marine Alkalinity Checker HC (HI755 / HI772) is a pocket-sized, single-parameter digital colorimeter engineered to eliminate the guesswork of tracking reef aquarium water chemistry [HI755-26, HI755]. Rather than struggling to spot subtle color shifts on a paper chart with standard titration test kits, this handheld device utilizes a precise optical system to analyze your water sample colorimetrically [HI755-26]. It provides a fast, lab-grade digital reading on a high-contrast LCD screen to help you maintain stable carbonate hardness and buffer levels for optimal coral skeletal growth [HI755-26].
📐 Technical Specs
Product Options: HI755 (displays results in ppm) or HI772 (displays results in dKH) [HI755-26]
Measurement Resolution: 1 ppm (HI755) / 0.1 dKH (HI772)
Measurement Accuracy: ±5% of reading at 25°C
Optical System: LED Light Source @ 610 nm with a Silicon Photocell
Battery Power: 1x 1.5V AAA battery (with a smart 10-minute auto shutoff)
🌟 Key Benefits
Digital Precision: Gives you an exact digital readout, removing the human error and subjective interpretation tied to standard visual liquid test kits [HI755-26].
Dedicated Single-Parameter Design: Compact, ergonomic, and contoured to fit perfectly in your hand or right next to your sump for quick daily testing.
Effortless One-Button Operation: Simply zero the meter with your unreacted sample tank water, add the liquid reagent, and press the button again to view your final reading.
Liquid-Only Reagent Convenience: Uses a simple liquid dosing reagent, letting you fill your testing syringes quickly without having to tear or pour messy powder packets [HI755-26].
📦 What's In The Box?
1x Handheld Marine Alkalinity Checker HC [HI755]
2x Glass Sample Cuvettes with Airtight Sealing Caps [HI97105C / HI97115C]
1x Starter Bottle of Marine Alkalinity Liquid Reagent (good for up to 25 tests)
1x 1 mL Graduated Syringe with a Specialized Plastic Dosing Tip
1x 1.5V AAA Battery & Comprehensive Instruction Guide
