

A passive monitoring system for the encrypted GSM networks, this device provides complete transparency to the service provider and maintains confidentiality for the operator. A single channel system alone can monitor over 200 targets at the same time providing target and corresponding call data TMSI, IMSI, IMEI, dialed number, time and date and two-way speech recording of each target. When the user operates on the 3-channel version of our device, the number of targets can be increased.
Based on laptop computer and contained within a discreet carrying case, the GSM Passive 900/1800 can be carried anywhere. Weighing a total of 11kg, the unit operates on 12V DC. The battery can be supplied from the car cigarette lighter or by a power supply through the normal electricity outlets.

