

A Projector Dowser is a simple DMX (or contact closure) controlled flag that can be closed in front of the projector's lens when you need a complete blackout.
Inexpensive digital projectors are used on shows everywhere but they have a problem that is difficult to overcome: When they fade out, they still project light, called "video black" and this small amount of light is easily visible during a stage blackout. A Projector Dowser is a simple DMX (or contact closure) controlled flag that can be closed in front of the projector's lens when you need a complete blackout.