Powerful GPS Signal Jammer , 3G GSM DCS Classroom Cell Phone Jammer

Basic Information
Place of Origin: China
Brand Name: GREETWIN
Certification: SGS, ISO9001
Model Number: GW-JF
Minimum Order Quantity: 1pcs
Price: Negotiable
Packaging Details: Carton with PE Foam
Delivery Time: 3 Working Days After Received Payment
Payment Terms: T/T, L/C, Western Union, MoneyGram
Supply Ability: 3000pcs per Month
Name:: Classroom Jammer Application:: Examination Room,Classroom
Working Time:: 5 Hours Operating Temp:: -40 To +55℃
Weight: 1.56kg Jamming Range: 5 - 30meters , Depend On Local Signal Strength
Application: School, Meeting Room Power Input: AC110V-240V
High Light:

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Powerful GPS Signal Jammer , 3G GSM DCS Classroom Cell Phone Jammer


This Phone Signal Jammer (signal isolator) products suitable for where forbid to use mobile phone.
The Mobile phone signal isolator will make effect only on the communication of mobile phones, instead of on other electronic devices andhuman bodies.



1. Jamming range up to 25m.

2. Working 5 hours continuously.

3. The jammed cell phone will show “No Service” .

will not be able to receive or dial outgoing calls.

4. Stable capability, cost-effective choice

5. Heat sink case makes the jammer work in a more stable and cool situation.

6. Four channels with different frequency range,

or customize other cellular standard in the world.

Such as Walkie Talkie,450MHz,GPRS,iDEN,GPS, Galileo,Compass,Glonass,UMTS,WiFi,AWS,LTE 4G.

7. Transmit noise signal to cut off all communication between cell phone and Base station.




Examination Room Classroom,Theatres, offices,Meeting Room, Oil and Gas Storage Facilities

and fields, Hospitals,Recording Studios, Banks, Contract Tendering Rooms, Churches,

ConferenceRooms, Testing Facilities, Security Services, Military, Secret
Services, Libraries, Museums, Courts, Border Patrol and Drug Enforcement,

Customs, House, mosques,  Libraries, Prisons, etc.


TX Frequency

CDMA: 850-894MHz

GSM: 930-960MHz

DCS/PHS: 1805-1990MHz

3G: 2110-2170MHz


Only interfere downlink frequency of mobile system, can’t affect normal operation of Base Station.


Output port Frequency Average output power Output power
CDMA800 851-894MHz 33dBm 2W
GSM900 925-960MHz 33dBm 2W

DCS1800/ PCS1900




33dBm 2W
3G 2110-2170MHz 33dBm 2W
GPS (Optional) 1570-1580MHz 33dBm 2W
WIFI (Optional) 2400-2500MHz 33dBm 2W
Total Output Power 8 Watt
Power Supply AC110-240V,DC 5V/8A
Power consumption 25 Watt
Weight 1.5kg
Size 320(L)×270(W)×110(H) mm not include antenna
Running temperature -10℃ to +55℃
Humidity 5% - 95%
Complete accessories Four omni-directional antennas, Power cable, Remote control, Fixed Mount
Jamming range(Radius) 5 - 25meters , depend on local signal strength


This device pack in a strong safety box with PE foam inside.

It gives top-class protection to the terminator device, and allows you to carry it easily like a big suitcase.

Powerful GPS Signal Jammer , 3G GSM DCS Classroom Cell Phone Jammer 0


Contact Details

Phone Number : +8615112267605

WhatsApp : +8615112267605