About This For begginers, "One Button Operation" quickly switch to the tropical mode or desert mode; For advancers, easy to set the desired day/night temperature, humidity and 4 timer periods (accurate to 1 second) with different modules logic technology 3 in 1 Integrated design with day/night temperature, humidity and timing control, which can meet the physiological needs of temperature, humidity and lighting for Reptiles, Amphibians or Plants. Plug and play design, easy to use and store; detachable temperature and humidity sensor probe for easy maintence Easy-to-read full-view LCD Display panel with 24 hours time system Alarm flashes and sounds when temperature reaches extreme high or low levels; Built-in memory stores settings in case of power failure Overview Brand : REPTI ZOO Special Feature : Waterproof Color : Thermometer Hygrometer Controller Age Range (Description) : Adult Included Components : detachable temperature and humidity sensor probe Display Type : LCD Product Care Instructions : Hand Wash Only Unit Count : 1 Count Power Source : Battery Powered Number of Batteries : 1 LR44 batteries required. (included)