This Complete Incubator Kit has everything you need for a successful hatch. It has a forced air fan kit already installed to pull in fresh air and stabilize temperature. The Automatic Egg Turner holds up to 42 eggs and turns the eggs completely every 4 hours to eliminate manual handling. The LCD display with LED light shows accurate temperature and humidity readings instantly. The self-regulating control board adjusts the temperature to suit varying environments. The built-in digital hydrometer and moisture channels help maintain humidity, a key factor in egg health. Large viewing windows allow easy visibility of the eggs. Red indicator light shows when heater is operating. Hard outer protective covering. Size: 19" x 19" x 8" Weight 8.5 lbs.