#9200 with #7200 Forced Air Incubator constructed of durable styrofoam to help retain warmth and keep a constant temperature. Incubators feature 2 4″x8″ viewing windows, ideal for educational purposes, solid state thermostat control, thermometer and moisture rings. This deluxe model includes a fully installed circulated air fan kit. The fan kit improves egg hatching conditions by circulating a constant flow of warm air throughout the incubator. Helps maintain a constant temp of 99.5 degrees F.