AQUADUR Sensitive Test Sticks, 50 pc/PAK, Gradation: 0-0.3-0.6-1.1 ° d / 0-5-10-20 ppm CaCO3

Storage temperature 4 -30 ° C, shelf life 2 years

AQUADUR sensitive test strips offer the same advantages as the classic AQUADUR test strips for determining the water hardness, but are characterized by a particularly low measuring range.