The KEDR-2 mobile phone blocker is intended for blocking mobile terminals (mobile phones) of GSM 900/1800, UMTS-3G standard mobile communication in a reserved area.

The product is made in the form of a complete unit with built-in circular antennas and has small dimensions.

This technology makes it possible to prevent the possibility of using mobile communication channels as a channel for unauthorized leakage of information, as well as to ensure a working environment during negotiations and meetings.

The device radiates in the range of operation of mobile communication systems, radiation performance in other ranges is negligible. The product has a low output power and effective blocking of mobile phones is performed using a special type of modulation.

Low performance does not have a negative effect on human health. For the same reason, the product has no effect on the operation of other technical means - household electronics, computers, office equipment.

Mobile phones may remain fixed by the communication system during product operation, but the phone does not recognize the base station signal, calls are not transferred to it, and communication cannot be established.

The effective area of ​​the KEDR-2 product is up to 40 meters (depending on the operating conditions and signal power of the base stations), energy consumption is up to 50 W, dimensions are 260x180x65 mm.

To cover a larger area, it is necessary to use several products located across the protected area or other models.