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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
3 dKH ±5% of reading
25 ppm ±2% of reading
Resolution: 1 ppm
All the REEFER XL models now feature a laminated
Built-in WiFi/Bluetooth control (Mobius)
Hanna Handheld Phosphate Colorimeter purple 3 dKH ±5% of readingHanna Marine Phosphate Ultra Low Range Checker (HI774) The Hanna Marine Phosphate ULR Checker (HI774) is a digital colorimeter designed to accurately measure ultra low phosphate levels in saltwater aquariums. It provides fast, precise digital results without the guesswork of color matching test kits, making it an essential tool for reef hobbyists looking to maintain optimal nutrient levels for healthy coral growth and vibrant coloration. Features: