Are you looking for a jammer to block out the signal to the black box for mileage purposes?

Have a company van and the company is going to be fitting trackers on your vehicles?

4P23G is a GSM DCS CDMA GPS Jammer(2G 3G + GPS Jammer) to block most GPS trackers working based on existing GSM/GPRS network and GPS satellites.

To serve you as device that can effortlessly deal with complex tracking systems which use Assisted GPS, or A-GPS, technology in order to locate your car or truck and motorcycle.

Why buy this 2G 3G GPS anti-tracker gps jammer from us:


Protection against A-GPS trackers
2-12 meters of safe radius
Two adapters for constant usage
Handheld usage thanks to built-in battery
Separate switches for CDMA and GPS signals
LED indicators for work and recharge
Four demountable antennas


Antennas 1: GSM
Antennas 2: DCS
Antennas 3: CDMA (2110-2170MHz)
Antennas 4: GPS L1 (1500-1600MHz)

Antennas 1+2+3 to block A-GPS GSM/GPRS network positioning.
Antennas 4 to block GPS satellites positioning.

Stopped Frequencies: GSM850, GPS L1, GSM1900, 3G
Jamming Radius: GPS L1: 2-12 meters and GSM/3G: 2-10 meters
Power Supply: adapters and battery
Power Adapters: AC 110V-250V to 12VDC, for car 12V-24V to 12VDC
Antennas Info: 4 units
Color: Golden
Dimension: 113(H)×60(L)×30(W)mm
Packing Weight:0.775kg
Net weight 0.275Kg
External Temperature: 0C~50C
External Humidity: 5%~80%

Important Notes for Jamming Distance: The jamming distances we mentioned on website are for customer's reference only. The actual jamming distance will be varied depending on the signal strength and the use location and if full charges, etc.

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