Product information "HI772 Checker HC ® - MARINE Alkalinity (dKH)"

The HI772 Checker^®HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure alkalinity in degrees of calcium hardness, commonly abbreviated as dKH. Critical to marine environments, alkalinity not only provides the carbonate ion required for calcium carbonate skeletal regeneration of coral reefs, but it also acts as a pH buffer against large changes in acidity.

Specifications

Range	0.0 to 20.0 dKH
Resolution	0.1 dKH
Accuracy @ 25°C/77°F	±0.3 dKH ±5% of reading
Light Source	LED @ 610 nm
Light Detector	silicon photocell
Method	colorimetric method
Environment	0 to 50°C (32 to 122°F); RH max 95% non-condensing
Battery Type	(1) 1.5V AAA
Auto-off	after ten minutes of non-use
Dimensions	86.0 mm x 61.0 mm x 37.5 mm (3.4" x 2.4" x 1.5")
Weight	64 g (2.25 oz.)

HANNA MARINE Alkalinity (dKH) (HI772 / Checker HC)