... 3,quick delivery within 24 hours six dots humidity indicator label 1, Brief:humidity indicator card (also know as HIC, ... in many configurations and used in many applications, such as PCB, IC, LED, especially military and semiconductor2, Features:one/1 ... RH can be made by customers' needs4, ApplicationPrinted Circuit Board, PCB, LED, SMD LED, IC,electronic packaging , optical equipment,electronic ...