Signal jammer with special waterproof shell design, strong internal protection, so we recommend prison. As a device, these signal jammer have a strong long distance interference, it is easy to move, easy to maneuver and strong.
Look at the case is white, looks like a transformer, it is difficult each time. If they know, unauthorized phone equipment will lock it up in prison. If you don’t damage or destroy prison disorder if you don’t have the necessary tools, it’s overflowing to prevent it. Another point is that the case is waterproof, so it can be attached to the door of the hall.
Please note that the main prison radio remote control interference 2G CDMA (851MHz-894MHz) GSM (925MHz-960MHz) DCS (1805MHz-1880MHz) PCS (1930MHz-1900MHz) and 3G (2110MHz -2185 MHz) do not apply to 4G and new 5G , You can chat with our online customer service so we know your needs. We know that a prisoner who is hard to escape from prison needs a partner or more break defense system to help. It can be partners from other units, or even outside. Communication tools are important to them, while the performance of the disruption is so important to the security of the prison system. The maximum jammer jamming interference range of 800 meters to meet all of your needs.
Definitely if your space and allow the use of 2G 3G cell phone signal, waterproof prison jammer is a good choice prisons.