Penn Plax Reptology Hygrometers monitor relative humidity (from 0-100%) in reptile and amphibian terrariums. The hygrometer features adhesive backing for fast mounting, and a large, easy-to-read dial that lets you assess your pets habitat conditions at a glance.
Monitors terrarium humidity levels
Measures relative humidity from 0-100%
Easy-to-read dial
Adhesive back allows easy mounting
Directions: Remove paper backing from self-adhesive sticker. Press firmly onto clean, dry surface.