The GEX Exoterra Timer Thermostat RTT-1 is a thermostat with a timer for reptiles and amphibians. It allows for different temperature and lighting settings for day and night, replicating a natural living rhythm. The control temperature range is 15-40°C, and it also features a warning lamp and a backup function in case of a power outage. * Day and night temperature and lighting can be set individually. * Control temperature range: 15-40°C * Features a warning lamp and a power outage backup function.