Method and devices for protecting commercial goods against theft

A method for protecting a commercial product against theft, in which a security unit is connected to a central unit outside of the security unit via connectors, and in which the central unit has a monitoring mode, in which theft protection is active such that a theft attempt will result in a shift to an alarm mode in which at least one of an acoustic and an optical alarm is activated, the method comprising:

• deactivating, in the monitoring mode, a receiver that is housed in the central unit outside of the commercial product;
• and
• activating the receiver when the central unit is shifted to the alarm mode.

A device for protecting a product against theft, comprising:

• a security unit connected to a central unit, located outside of the security unit, via connectors, the central unit including a monitoring mode in which theft protection is active and a theft attempt will trigger a shift to an alarm mode in which at least one of an acoustic and an optical alarm is activated;
• and
• a receiver housed in the central unit, wherein the receiver is deactivated in the monitoring mode and is activated in the alarm mode, wherein the central unit has an on-state mode in which the receiver is activated and wherein the central unit is shifted from the on-state mode to a connect mode in which theft protection is not active when the receiver receives a selection signal from a transmitter, wherein the receiver stores the selection signal in a memory, whereby the security unit is assigned to the transmitter or its selection signal, respectively.