zapper

A device that uses energy, especially electric current or radiation, for a specified purpose, especially a device that kills insects by means of an electric current flowing through a wire grid.

A remote control for a television set.

A remote control for a television.

A thing that zaps by passing a large voltage, e.g. a bug zapper.

By extension, any thing capable of extermination.

an electrical device that can injure or kill by means of electric currents