Product Description

This moisture indicating disc is for our visual indicators as well as many others. This disc is designed to show the relative humidity in a progressive scale. As 10 percent relative humidity is reached, the pie shaped section marked “10” will change color to pink. The same for 20 and 30. This lower range disc is sometimes used by technical divers and others who require very low moisture in the air. Color will revert back to blue when a new filter is placed in the system.