The Exo Terra Analog Thermometer is great for monitoring your reptile's terrarium temperature levels. The Thermometer has a clear analog dial display making it easy to read the temperature levels in the terrarium. The Exo Terra Analog Thermometer is easy and quick to install, just simply adhere the thermometer in the terrarium. Key Features : *Easy to read and install *Clear analog dial display *Helps monitor the terrarium temperature levels.