Reptile Turtle Terrarium Vivarium Moisture Meter Hygrometer Gauge Chowing Box 28TC Features:1. Using ROHS environmentally friendly materials and high precision, high sensitivity moisture detection components2. Used to measure moisture in vivariums, hatchers, brooders, propagators, etc3. Monitoring indoor humidity is essential to ensure that each reptile species has the right environment4. Uses color-coded segments for easy reading5. A dust-absorbing cloth on the back allows it to be mounted on most surfaces6. White indicator, easier to install7. It is an ideal space saver and helps you know the living environment of your pets: Specifications:Daimeter: About 51mm/ 2.01"Humidity Range: 0 - 100% Package Included:1 x Reptile Hygrometer