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20 Antennas Indoor & Car use Mobile Phone Jammer EST-502F20

SKU: #001 - In Stock

  • airport Shipping:  International shipping available
  • delivery_food Shipping time:   Standar(10-20 business days), Rush(5-10 business days)
  • chip Discount:  Get 2% discount on orders of USD $100.00,Get 3% discount on orders of USD $200.00
  • compass Handling time:  Ships within 3 business days after receiving cleared payment
  • available_updates Returns:  7 days money back guaratee,buyer pays return shipping

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This powerful EST-502F10 adopted advanced technology 20 antennas mobile phone jammer, widely blocks the mobile phone frequency such as, GSM/CMDA/DCS/PCS/3G/4G/4G LTE/GPS/2.4G WiFi/5.8G WiFi/VHF/UHF/LOJACK/5G1/5G2, within 1-40 meters radius. Creating a shielding area to protect you from information leaking and track positioning. For organization and personnel who required information security and high confidentiality, or places where wireless signal is prohibited.



(1) Available TX frequency(customization available due to customers request)

1) 1st Channel: CDMA: 851-894MHz

2) 2nd Channel: GSM: 925-960MHz

3) 3rd Channel: DCS: 1805-1880MHz

4) 4th Channel: PCS: 1920-1990MHz

5) 5th Channel: 3G: 2110-2170MHz

6) 6th Channel: 2.4G WIFI: 2400-2500MHz

7) 7th Channel: GPS L1: 1575±10MHz

8) 8th Channel: 4G LTE: 725-825MHz

9) 9th Channel: 4G WiMAX: 2500-2690MHz

10) 10th Channel: UHF: 400-470MHz

11) 11th Channel: VHF: 135-174MHz / LOJACK: 173.075MHz

12) 12th Channel: 315: 315MHz

13) 13th Channel: 433: 433MHz

14) 14th Channel: 868: 868MHz

15) 15th Channel: 915: 915MHz

16) 16th Channel: GPS L2-L5: 1170-1230MHz

17) 17th Channel: GPS L3-L4: 1370-1390MHz

18) 18th Channel: 5.8G WIFI: 5715-5860MHz

19) 19th Channel: 5G1: 3400-3600MHz

20) 20th Channel: 5G2: 4800-5000MHz

(2) Colour: Black

(3) Antenna: 20pcs omnidirectional antennas

(4) Jamming Radius: 0-40m adjustable (@-75dBm, still depends on the signal strength in given area)

1) the cellular 2G/3G signal strength must ≤ -75dBm in the location

2) the cellular 4G/5G signal strength must ≤ -115dBm in the location

(5) Single Output Power(each band): ≤ 33dBm / 2W (adjustable with power adjustment knob)

(6) Power Supply: AC adapter(Input: AC100-240V; Output: DC12V 20A), or DC12V car adapter

(7) Dimension: 420*235*58mm (excluding antennas)

(8) Main Unit Weight: 4.7kg

(9) Full Set Weight(N.W.): 6.6kg

(10) Working Temperature: -40 to +55℃

(11) Relative humidity: ≤90%(RH)

(12) Air pressure: 86~106kPa

(13) Safety regulation:  AC Adapter UL (E190582)  /  CSA (LR112971 Level 3)



(1) Effectively block common RF wireless signals including cellular signals, WiFi signals, GPS/GNSS satellite navigation signals, UHF/VHF, wireless remote controls signals, etc.

(2) All-in-one full band powerful indoor & car use RF jammer, multi-use, stable and reliable jamming effect.

(3) With high gain omnidirectional antennas, excellent jamming range

(4) Adjustable output power(jamming range), fulfill with specialized operation.

(5) Friendly use and maintenance, low noise while working, best choice for conference room

(6) Excellent cooling system with 5 cooling fans and high heat dissipated plate, makes 24/7 non-stop working available.

(7) Each bands can be adjusted independently with adjust knob, without interfering other bands work.

(8) With car adapter, this jammer could be used in mobile vehicle such as, bus, train, truck, etc.


Operation instruction

(1) Open the package and take out the main unit

(2) Install the antennas to right position according to the labels and plug in(important, otherwise the jammer will not work)

(3) Switch on the jammer, then the indicator on AC adapter light green and the indicator next to the switch light red, then the devices is working.

(4) The valid scope is a round space spread from the jammer, to achieve the most efficiency, please put the jammer in the center.

(5) Please keep the jammer away from electromagnetic and heat sources to ensure maximum efficiency and stable longtime performance.

(6) Please switch off the jammer after using for normal usage of mobile phone and other electronic devices.

(7) While using outdoors, please keep away from water and damp.



(1) The jammer needs no special maintenance

(2) For storage, please avoid caustic gases and liquids and ensure the jammer is dust-proof and moisture-proof to prevent aging of the inside components be accelerated.

(3) For storage, please contain the jammer in dry and ventilated places to avoid salty mist and noxious gases.

(4) The warranty period is 1 year.


Application situation

Conference room, home, hotel ,residential zone, jail, government building, car, bus, truck, mobile vehicle. Places where information security and high confidentiality is required, or wireless signal is prohibited.


Packing list

(1) EST-502F20 Jammer main unit—————————-1 piece

(2) Antenna——————————————————–1 set (20 pieces)

(3) AC adapter—————————————————-1 piece

(4) Car adapter—————————————————-1 piece

(5) Remote control———————————————–1 piece

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