De-vamper

The De-vamper is a device created by Nikola Tesla to remove the vampire genes from his test subjects. It was powerful enough to even de-power its creator.

He hid the device at the Old City Sanctuary in a bottle of wine that was given to Dr. Helen Magnus by Winston Churchill on D-Day. Helen found the device and brought it to Nikola, who used it to "de-vamp" Chad Spencer and his friends.