Brinsea Products Manual Egg Incubator for Hatching 24 Chicken Eggs or Equivalent Temperature factory preset at 99.5F with easy tamper-proof adjustment Flashing temperature indicator and accurate liquid in glass thermometer 24 chicken egg capacity but suitable for a wide range of egg sizes with no further accessories Fan assisted air circulation and Robust hygienic ABS plastics construction for easy cleaning Kindly refer the user manual below.