ITEM NAME:Tortoise Reptile Vivarium Terrarium Thermometer Thermo-hygrometer Humidity Gauge 1.Using ROHS environmentally friendly materials and high temperature and humidity sensing components of high precision, high sensitivity 2.Used to measure temperature in vivariums, hatchers, brooders, propagators, etc 3.Monitoring of temprature within an enclosure is essential in providing any reptile species with the correct enviroment 4.Uses colour coded segments for easy reading 5.Sticky pad on reverse allows it to be mounted on most surfaces 6.White pointer, more easy to install 7.It is an ideal space saving and help you know your pets' living enviroment anytime Specifications: Daimeter: Approx. 76mm/ 2.83" Temperature Range: -20-50Â °C (0-110℉) Humidity range: 0 ~ 100% 1 x Reptile Thermo-hygrometer.Humidity range: 0 ~ 100%. Also note that monitor settings may vary from computer to computer and may distort actual colors. Temperature Range: -20-50Â °C (0-110℉). White pointer, more easy to install.