reversible humidity indicator label 1,dry packed wiith moisture smd led,pcb,IC,desiccant ... 2,easily to get the humidity level reversible Humidity indicator label is small, paper instruments designed to monitor relative humidity levels ... ) Approx. Shipping Weight 475gram (250pcs)/can, 6kg/cartonRoHS Not detected Cd, Pb, Hg, Cr6+, PBB, and PBDEApplication Semiconductor, PCB, SMD, Optical ...