Plug in the probe and ground wires to the power pack. Attach the ground wire to a strip (about 3" x 9") of lift film and tape the strip of lift film, silver-side down, to the surface near the footwear impression.
Turn on the power pack and touch the probe to the lift film over the footwear impression to charge it with electricity.Use the roller to insure maximum contact between the film and the surface. Turn off the power pack but continue to touch the probe to the film for a few moments. Discharge the probe by touching it to a metal surface. Carefully turn over the film and transport it to the photo studio as soon as possible. Keep the film as flat as possible.
This unit is 220v for export and use outside the United States.