PKI 4445 is a white noise generator of the latest generation. Easy to handle, rugged design with integrated Li-Ion batteries and very efficent. The technology of monitoring devices is rapidly increasing, and detection and location of such devices is very hard to realize. Transmission frequencies of such items may vary nowadays from VHF to upper GHz-range. Additionally, optical monitoring systems like lasers, infrared systems or audio-stethoscopes are in use. Therefore, it is essential that government departments as well as industrial companies protect themselves against such famous monitoring devices. For this purpose, PKI has developed this new noise generator which creates a white noise which is emitted via responators to the windows, doors, or walls. PKI 4445 can be placed and fixed by the supplied special PKI mastics material. By means of these vibrations, such monitoring devices are interfered, and an understandable transmission is impossible. This PKI 4445 Noise Generator is especially in use where members of conferences should not be aware of such protection actions.