EGG Candler Light Tester Included in package This feature is available only for the 36, 48 and 60 Egg Incubators: Display for Countdown of days remaining before eggs hatch (2 hours units) Smart design with streamlined shape for ease of use Made for beginners as well as professionals High industry standards & trusted certificates Automatic digital display Temperature & humidity display Temperature and humidity automatic functions (35-40 Degrees Celsius) Temperature and humidity advanced manual control (temperature range 0~99 degrees Celsius) Automatic egg turning motor Quality PP material with a solid moulded construction Anti-jamming function and higher stability Clear cover for egg visibility; allows easy observation Automatic cooling and ventilating system Voltage: 110V&220V Frequency: 50-60Hz