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LOJACK GPS 3G 4G Mobile Phone Jammer with LCD Display Screen Maximize

LOJACK GPS 3G 4G Mobile Phone Jammer with LCD Display Screen

849 Items in stock



  • LCD Display Screen: Display whether the jammer is working normally. It can display the battery power, charging and the body temperature, making it more convenience to control the usage of the device.
  • Cooling Fan: Using dual fans for cooling, with more uniform heat dissipation, more stable interference performance. Thus the jammer can be used in car directly, with a car charger and AC charger included. 
  • Switches: 1 main switch, the No. 1 to No. 6 switches for antenna's single control, You can choose the jamming antennas function individually; the switch has memory function. If the device restarts, it will keep the previous jamming settings by default.

  Before turning on the device, you must install the antennas correctly according to the marked indication on the main unit:
(1)CDMA/GSM:850 - 960MHz
(2)DCS/PCS:1805 - 1990MHz
(3)3G: 2110 - 2170MHz
(4)GPS:1570---1580 MHz
(5)4G: 2345 - 2400MHZ OR 2620-2690MHZ
(6)LOJACK 167MHZ - 175MHZ
  You can select the above 6 frequency bands you need to block.

Other Manufacturer Specifications:

  • Total output power: 3W , Small size design so the temperature is a bit higher
  • Jamming range: up to 20m, the jamming radius still depends on the strength of signals in given area 
  • External Omni-directional antennas all the TX frequency covered down link only 
  • Power supply: 50 ~ 60Hz, 100 ~ 240V AC 
  • With AC adapter (AC100-240V-DC12V), 4000mA/H battery
  • Dimension: 145x83x52mm and not including antennas
  • Inner box dimension:238x175x75mm
  • Full set weight: 0.88Kg
  • With Built-in Battery:4000mA/h,fully charged need about 6 Hours
  • Working time:1-2Hours.

Application Area:

  1. This jammer can be applied at meeting rooms, conference rooms, trains, bus and so on.
  2. As to some locations used for special purposes such as hospitals, gas stations and more, Please do field test first to make sure no interference happened to the normal operation of their equipments and instruments.

Warranty: One year since the delivery date.


It works perfectly beyond my expectation!

At the time of ordering this jammer, I was a little dubious at first. But after I got it and did a test, it really delighted me since it perfectly blocked all these GPS 3G 4G signals. Great !

Sergio T.

Great jammer!

The design of this jammer is awesome. It turns out to work perfectly after test. Good seller and customer service!

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LOJACK GPS 3G 4G Mobile Phone Jammer with LCD Display Screen

LOJACK GPS 3G 4G Mobile Phone Jammer with LCD Display Screen

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