Automatic egg turning / roller system The incubator automatically rotates or rolls the eggs at fixed intervals (often every 1.5–2 hours) to mimic how a mother bird turns eggs. This helps ensure even heating and correct embryo development, and prevents the embryo from sticking to the shell.
Temperature control (digital thermostat + sensors + display) Maintains a stable optimal temperature inside — critical for incubation success. Many models let you set and monitor temperature via a digital panel.
Humidity control (water channels / humidity regulation) Controls the moisture inside the incubator. Proper humidity is important for embryo development and hatching. Some designs use built-in water channels/trays for easy humidity maintenance.