This device is developed specially for prisons and other large, sensitive facilities, such as military installations and government compounds.
With waterproof performance and 300-500W high output power, the device shows the good nature in many aspects. The shielding radius is up to 100-500 meters which is more than 10 times to the common device. 
Used in the prison, it can greatly reduce the possibility of break prison. What's more, it has metal enclosure which prevents sabotage. With the integrated incoming air filter, it makes sure the device cooling system operation normally
Features :
1. Each unit can jam up to six frequency bands simultaneously.
2. For the cellular phone jamming, only making the interference to the downlink bands,never to the uplink and make sure BTS normal running.
3. Special Waterproof and solid housing for all weather protection.
4. Continuous operation, even in hot climates, with no time limit.
5. Heat sink designing combing with the fans to make system in a cooling status.
6. Secure design to avoid sabotage.
7. (VSWR) circuit protection to ensure system will not burn out in case of antenna short circuiting or disconnection.
8. Antenna type options, directional or omni-directional antennas option.
9. Wireless software controlled. No wired connection.
10. E-mail and Alarming system. Once something is wrong, such as the cabinet opened maliciously, RF cables cut off deliberately, Modules failure,Temperature problem.
11. Adjust the output power of the jamming modules by the computer.
12. ON/OFF each Jamming module or device separately.
13. Set the time to open and close the machine. system can be automatically entered into operation.
14. Selection of antennas to provide more flexibility regarding jamming coverage.
15. UPS and battery backup in case of mains power failure.

Specifications:
Frequency Ranges Selectable:
Number of Frequency bands: 3 bands, 4 bands, 5 bands, 6 bands ...
All Frequency, Up to 12 Bands can be chosen:

Application:
• Mainly used in examination rooms, prisons, gas stations, mobile phone bombs, oil depots, LPG stations,detention centers, interrogation rooms, courts; Reform-through-labour teams, conference rooms, movie theaters, churches, libraries, school dormitories;
• Special security and confidential occasions (confidential office, negotiation room, mobile vehicles, mobile political and business dignitaries guarding the scene;
• All kinds of military sites and other prohibited places to use mobile phones.

Terms and conditions: