Handheld device for detecting manipulation focused on changing the pricing

摘要

Inspection method for detecting illegal tampering oriented alter pricing of goods or services measurable supply by a handling device that can be remotely turned on or off by a control signal radio frequency, the handling device comprising a radio receiver of said signal radio frequency, said radio receiver being such as to produce intrinsically, during normal operation, spurious emission in a band prevailing emission, the method comprising a step of performing a detection at a point supply of such goods or services, by means of a detector device (10) to facilitate detection of oriented alter pricing of goods or services measurable supply manipulation, with the detector device (10) a portable device comprising: - at least one probe of radio frequency (20) provided with u na antenna (21) to capture, in a selective manner to the frequency, these spurious electromagnetic emissions from said radio receiver in the prevailing emission band, for providing an electrical output signal of radio frequency; - a signal processing circuit (11) for receiving said electrical signal output radio frequency, for providing, based on said electric signal output radio frequency, useful information to detect the presence of the receptor; wherein said step of performing detection is carried out by placing and sweeping manually, by an operator, said probe radio frequency (20), near the walls of a counter, or the walls of a housing said counter, or the walls of a room installation of said counter to locate said handling device, detecting the presence and installation position said radio receiver, using information provided by said detecting device (10).