... Ventilation by vertical air moving fan controlled by an electrical motor 8. Heating with heater controlled by electronic system with ... temperature, humidity, egg-turning, exhaust, etc. Before leaving factory, which meets settings required by incubation. Under normal circumstances, ... 999 times →Ventilation cycle 5-999 minutes (adjustable, factory 0 hours, non-ventilation) →Ventilation time 0-999 seconds ...