The mobile cell phone jammer only has effect on communication of cell phones

Compared with similar products of six advantages:
1, the chip: the product of independent intellectual property rights of all chip-chip, to ensure product quality and stability.
2, power adjustable: shielding range from -30 m 2 m radius.
3, Power: product design using aluminum metal supply, heat supply significantly better than the plastic casing (plastic power dissipation is not good, very easy to burn), you can ensure long-term product stability.
4, the switch: the product and are equipped with the power switch on, the user operation is very convenient.
5, four channels: the product four channels (four antennas) cross-shielding, the shielding effect is better than two with built-in antenna and antenna products.
6, after-sales service: three months, shifting, one year warranty!cell phone jammer helps to resolve the problem that some criminals undertaking criminal activities.
Success Stories
Nanjing University of Science
Nanjing Jinling Petrochemical Corporation
Jiangsu Provincial Public Security
Institute of Electronics XIV
Taizhou People's Armed Police Corps
Sihong detention center in Jiangsu Province
1, shielding GSM/DCS/CDMA/PHS/3G Rd band 2, an aluminum alloy enclosure, panel or screen printing according to customer needs OEM logo (silk screen services provided free of charge) 3 , the transmission power 4W, each antenna of about 1W 4, effectively shielding adjustable from 1-20 meters (factory according to customer requirements debugging) 5, the human body without any damage to the main application apply all kinds of places the examination room, conference room or other place three months after service replacement, repair within one year performance.
cell phone jammer has restricted the use of cell phones in some certain ranges. Specifications No. 1 CDMA technology standard transmission frequency band 869-894MHz 2 PHS band transmission frequency band 1900-1990MHz 3 GSM frequencies 925-960MHz 4 launch DCS band transmission frequency band 1805-1880MHz 5 3G transmission frequency 2110-2170MHz 5 Power DC12V-36V Output DC 5V 6 Dimensions 210 (L) × 170 (W) × 45 (H) 7 Weight 800 g 8 isolated range 1-20 m (about 50-250 square meters) the role of mobile phones can type 139/138/137/136/135/133/131/130 9 / 10 use the PHS environmental conditions such as temperature of -10 to -55 ℃ relative humidity ≤ 90% (RH ) atmospheric pressure 86-106kPa. The mobile cell phone jammer only has effect on communication of cell phones. This product is available installation instructions direct screw fixed to the wall or ceiling, the product surface temperature can reach 50 ℃, so please stay away from low-heat objects. Installation height :1.0-2.0 m best installation directions: Do not phone signal jammers at the mobile phone base station antenna direction, otherwise it will affect the results. 1), the antenna design to connect the antenna to adopt anti-wrong, and only be inserted correctly installed. (Note: If you do not turn the power switch on the antenna may damage the machine) 2), power connector check the main power switch, make sure the power switch is off, the power plug with AC220V power supply connection.
The principle of microwave communications equipment used in the Union to apply its own dedicated communication band, and then use the band-pass filter to filter out other signals in addition to their band. The mobile cell phone jammer only has effect on cell phones but not other electronic equipments. Communication between mobile phones and base stations is such, mobile phones and base stations set up microwave network between the base station cellular network to achieve a cell phone communications.