The 28878 is a replacement humidity indicator card. It provides a visual reference of humidity level inside the enclosure. Colored circles change color from blue to pink to indicate humidity levels of 30%, 40%, and 50% relative humidity. Double sticky tape on the back of the card allows it to be easily secured to an enclosure lid.
The enclosure supply kit includes desiccant, a humidity indicator card, cable ties, wire tie tabs, putty for sealing the conduit, and screws and grommets for attaching peripherals to the enclosure backplate.