Low Cost Reptile Humidity Indicator

A low-cost introductory humidity indicator that has been designed for use in reptile habitats. The relative humidity sensor uses a technology that was originally developed for use by the military and the industrial packaging industry.

As the humidity level increases, the color changes from a blue color (dry) to a pink color (humid) in 10% increments. Each sensor attaches to the tank wall using its adhesive backing. Humidity indicator measures 3/4" x 5-1/4", 10%-100% RH in 10% increments.