The present invention provides a personal security network where an individual’s system or systems of security devices may be connected to a central security network. In one embodiment, an assembly for duplicating a master key includes an optical imaging device, a logic, a clamping assembly, and a cutting member. The waterway adapter and at least one inlet supply tube are supported by at least one coupler. By taking hot carrier measures in the electric current controlling FET, the electronic device having high reliability can be obtained.