Wenwenlucky's Fotothing

Explosion-Proof Type Mobile Phone Signal Jammer $219.99
http://www.digsell.com/explosion-proof-type-mobile-phone-signal-jammer.html


It can be applied at prison,oil field, museum,gas station,military base,security protection etc. please do field test first to make sure no interference happened to the normal operation of their equipment and instrument.It’s easy to install and operate the device.
To protect your privacy, it is important to take steps to ensure that your business meetings or other private conversations are not being recorded. One way is to jam wireless signals, preventing spy camera surveillance and disabling cellphones.Take a look at Digsell's range of Security Products.
Features of the Explosion-Proof Cell Phone Jammers
Returning a peaceful and comfortable environment to you and also ensuring your personal safety
Preventing sparks occured by switching a mobile phone on and off in gas or oil stations
To keep you away from noise or disturbance of unexpected cellular phone calls or text messages (SMS)
World wide compatible.
To block cellular phone communication links within an effective area.
No transmissions or receptions of cellular phone calls in coverage area.
All specified frequency bands will be blocked simultaneously.
For using at Gas Stations,Oil and Gas Storage Facilities, Oil and Gas Fields,Prisons, factories, banks, trains, buses etc.
All communication frequency bandwith are interfered

For more Jammers:
http://www.digsell.com/security-surveillance-jammer.html