Regarding the relative environmental laws, we have developed cobalt-free humidity indicator that was the substitution of anti-humidity indicator. Cobalt wasn't contended in this product which was confirmed to some laws.
This product possesses the feature of convenient, obvious, and great indicated scale, moreover, it can be used repeatedly. The sensitive instruction composition that calibrated can make it more accurate.
There are various series products of cobalt-free humidity indicators to be customers' select being used in different occasions. It can be divided into: 6 spot (10% - 60%), used in general use; 4 spot (10% - 40%), used in preserving packing and general use; 3 spot (5% - 15%), used in high sensitive electronic element, military instrument equipment, and optical equipment; single spot 8%, used in large-size packing, barrel type packing container. Custom-made products can be available.
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