Dometic Fantastic Vent is the 40 x 40 powerful and electric opening skylight screen smartcon dome. The switch allows you to easily select the direction of fan rotation, to suck air inside or outside the vehicle. When it rains, the rain sensor automatically closes the dome. Once dry, it automatically reopens the dome. You can also operate the opening and closing of the dome by means of a switch. For true comfort at your fingertips, the Fantastic Vent is equipped with an integrated thermostat that keeps the desired temperature constant.