The Exo Terra Thermometer monitors temperature levels effectively and easily. It comes equipped with the option to monitor the temperature of your reptile terrarium in Celsius and Fahrenheit. The clear analog dial display of the Exo Terra Thermometer is easy to read and it is easy to mount on smooth surfaces using the adhesive dot. Maintaining the proper temperature and humidity levels in a reptile terrarium is vital for the well-being and health of all reptiles and amphibians. The Exo Terra Thermometer that will help you monitor and maintain proper temperature and humidity levels for tropical, rainforest and desert environment.