An automatic discharge device includes a housing retaining two containers therein. An actuator arm is attached to the housing and movable between first and second positions. A drive unit is provided for automatically moving the actuator arm into one of the first and second positions in response to a signal from at least one of a timer, a sensor, and a manual switch. The movement of the actuator arm actuates a valve stem of one of the two containers in one of the first and second positions. The actuator arm is adapted to spray fluid disposed in an interior of the two containers.