Inexpensive no name brand light meter.
Most people don't know what this is, so it could be measuring paranormal activity of ghosts, heat loss, or a time disturbance in a time warp. Adding light will increase the meter reading, so it has many possible uses. Could be embellished to look like a different machine and just leave the meter exposed.
Great for building a new prop around or just use it as is as a light meter.
Just one more prop in our movie and stage props inventory.