Hanna Instruments pH HI-780

Over the years however, acidification tendency is to decrease 0.1 to 0.2 pH units/century. Acidification is a consequence of carbon dioxide (CO₂) absorption in seawaters and oceans. Carbon dioxide reacts with seawater to produce carbonic acid (H₂CO₃).
pH modifications affect marine life growth, reproduction, and communication. Hydrogen ions have a tendency to bond with carbonate to form bicarbonate. The greater attraction to carbonate over calcium can adversely affect skeleton building and can limit coral growth
-Ideal for aquariums and marine biology
-Easier to use and more accurate than chemical test kits
-Small size, big convenience
Specifications
Range: 6.3 to 8.6 pH
Resolution: 0.1
pHAccuracy @ 25°C/77°F: ±0.2 pH
Light Source LED @ 525 nm
Light Detector: silicon photocell
Method: colorimetric adaptation of phenol red method
Auto-off after ten minutes of non-use
Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing
Battery Type (1) 1.5V AAA
 
Ordering Information
HI-780 Checker HC is supplied with sample cuvettes with caps (2), pH reagent starter set, battery, and instructions
Accessories purchased separately HI-780-25 Reagent set for approx. - 100 tests. HI-780-11 Calibration set