2G / 3G Cell Phone Signal Blocker Jammer High Frequency EST-808A
The mobile phone signal jammer will make effect only on the communication of mobile phones has no negative effection on other electronic devices and human bodies, thus can be used widely.
1, 4-channel type can efficiently provide shield for mobile signals from CDMA, GSM, DCS/PCS,3G.
2, It only shields the signals from mobile phone does not affect the normal operation of other electronic devices;
3 Generally, please use your mobile phone at the places more than 200 meters away from the base station;
4 switching on, it can work stably for a long time;
5 Slow start-up circuit can avoid sparkling caused by mechanical switch.
1, Effective coverage: 1-15 meters(Depending on the mobile service provider’s Network condition)
2, Blocking signal bandwidth:( customize)
CDMA: 869-894MHz GSM: 930-960 MHz
3 Working time: it can work stably for a long time
4 Environment temperature: - 45℃ to +55℃
5 Relative humidity: 30% -- 95%
6 Power adapter:input AC 160V – 240V output DC 5V 12A
1 Take out the jammer from the packaging;
2 Fix the antennas following antenna seats respectively, otherwise they will be unworkable;
3 Hang the jammer onto the wall, and the best hanging height is 1-2 meters;
4 Insert the AC plug into the socket, connect the 5V output to the jammer, then switch on.
1, Fix the antenna well before turning on the device.
2, Since the valid scope covered by the jammer is a round area with the jammer as the center, please pay attention to choose the
best place where the device located to avoid the dead corner.
3 The device should be placed in the areas of good ventilation. Please try to avoid the shielding of big objects, or keep away
strong electromagnetic sources with heat sources to ensure high isolation effect and stable operation for a long time.
4, Do not put other objects on the jammer or dismantle antenna while the device is working. It'll disturb the jamming performance or even harm to the jammer.
5, Switch off the device in time when not using it.
6,The unit is better for indoor use, if happenly you have to use it outdoor,pleasure make sure to keep it away from water or damp.
7 When the application area is larger than the covering scope of the device, it is recommended to use several jammers and install them by cellular mode.
8 Since power supply, antenna and main unit make a whole set, and well set up before leaving factory, in order to ensure the best performance, do not mix-use them with others.
9 Keep away from caustic gases and liquids, and be sure to make it dust-proof and moisture-proof.
1, The unit needs no special maintenance.
2, Do not use chemical solvents and prevent water from entering into the device when cleaning its surface.
3, When not in use, the device should be placed in dry and ventilated places, to avoid its contact with salty mist and noxious gases.
4, The warranty period is one year.
Mobile phone signal jammer (main unit) 1 pc
Antennas 1 set (4pcs)
Power adapter 1 pc
Power cord 1 pc
The jammer is ONLY for legal use!