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Tests to measure water parameters based on light absorption.
Reference: RFD-2476
Brand: Hanna Instruments
HANNA - HI780 Checker pH Marine
The HI-780 Checker HC is a simple, accurate, and cost effective way to measure pH in seawater. Designed as a more accurate alternative to chemical test kits, this handheld colorimeter provides quick, accurate pH testing results.
Reference: RFD-2477
Brand: Hanna Instruments
HANNA - HI781 Checker Nitrates LR Marine
The HI781 Nitrate Checker HC by Hanna Instruments is a simple and accurate handheld colorimeter that uses the Beer-Lambert principle to determine nitrate concentration.
Reference: RFD-2479
Brand: Hanna Instruments
HANNA - HI781-25 Checker Nitrates LR Marine Reagent
Reagents for HI781 Checker Nitrate LR Marine.
Reference: RFD-2669
Brand: Hanna Instruments
HANNA - HI764 Checker Nitrite ULR
Check for Nitrite easily in your tank. The Hanna HI764 Checker HC Handheld Colorimeter for Nitrite ULR bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the Hanna Nitrite Checker, press...
Reference: RFD-2601
Brand: Hanna Instruments
HANNA - HI97105C Photometer pH, KH, Ca, NO3, NO2, PO4 (Case + Reagents)
The HI97105 Marine Master Photometer combines accuracy and ease of use in a simple, portable design. The advanced optical system provides lab-quality accuracy while its user-friendly design is easy for any aquarium user making it the perfect photometer for your water quality testing needs.
Reference: RFD-2625
Brand: Hanna Instruments
HANNA - HI772 Alkalinity Checker (dKh)
The Hanna Alkalinity checker is an awesome little tool that now will give results in DKH values that are much more common in the aquarium hobby.
Reference: RFD-2670
Brand: Hanna Instruments
HANNA - HI764-25 Reagents Checker Nitrites ULR
Reagents for Hanna Checker Nitrite ULR (25 tests).
Reference: RFD-2672
Brand: Hanna Instruments
HANNA - HI774-25 Checker Phosphates ULR Marine Reagent
Phosphate Ultra Low Range reagent refills for the easy to use, handheld Phosphate ULR ppm Colorimeter HI774 Hanna Checker HC - Marine Water
Reference: RFD-2671
Brand: Hanna Instruments
HANNA - HI774 Checker Phosphates ULR Marine
The HI774 Ultra Low Range Phosphate Checker® is a cost-effective way to measure phosphate in marine systems, including reef tanks. Excessive phosphate levels can prevent calcification, skeletal formation, and growth of many coral species, particularly those referred to as SPS or small-polyp stony.
