MPJ-4 Total Band Mobile Phone Jammer
The MPJ-4 is a high quality multi-band 3G mobile phone jammer designed to prevent the ability to receive mobile phone signal in a given premises.
The unit is particularly suited to prisons, schools, cinemas, libraries and places of worship.

Band Jamming Range
The MPJ-4 is an ALL band jammer, which means it will effectively disable the following mobile phone frequencies: -
- Nextel;
- 800;
- 900;
- 1,800;
- 1,900;
- 3G;
- UMTS, CDMA2000.
Powerful performance
The MPJ-4 is able to block mobile phone activity within a 30-50m range from the base station (Dependant upon the environment).
Prevent
- Covert surveillance in company board meetings;
- Cheating in school exams;
- Mobile calls in:
- Libraries;
- Theatres, concert halls & cinemas;
- Places of worship;
- Petrol stations;
- Conference rooms;
- Museums & galleries,
- Restaurants,
- Classrooms & training centres
- Factories & work places;
- Banks & financial institutions;
- Trains, buses etc;
- Court rooms;
- Restricted / Top secret areas.
Features
- World wide compatible;
- Ideal for commercial usage;
- Strong, tough aluminium cast body;
- Prevents noise or disturbance from unexpected mobile phone calls or text messages (SMS);
- It can paralyse mobile phone communication links within an effective area; preventing transmissions or receptions of mobile phone calls;
- All specified frequency bands will be paralysed simultaneously;
- The coverage area is a sphere area with its effective distance as a radius.
- F or some locations such as hospitals etc. care should be taken operating this device near electronic equipment;
- Easy to install and operate.
Safety
- With regards placing the jammer near sensitive or vital electronic equipment, a competent engineer or technician with knowledge of the equipment should be consulted;
- When operating any mobile phone jammer, the user should be aware that emergency communications can also be blocked. It is good practice to display a sign such as "Doctors please note that mobile phone reception is poor in this building" when the jammer is being used in a public place.
Specifications
- Input Power: DC 5 volt 4A;
- Effective Jamming : Nextel/ CDMA/ GSM900/GSM1800/ 3G(UMTS, CDMA2000);
- Optional Jamming: TDMA/ AMPS /NMTP/ Etacs/ DCS/ W-CDMA/ PCS/ WIFI;
- Directional block range: 30m – 50m, 60m – 80m Range option available;
- Antenna output power: Total 12 Watts – 3.0 watts per channel;
- Operating temperature: –15 oC to +50 oC;
- Dimensions: 235mm x 145mm x 43mm;
- Weight: 1.2 Kg.

To view the full detail on this product as a PDF please click here.
To view our related MPJ-2 GSM Jammer product as a PDF please click MPJ-2 GSM Jammer.
To view our related MPJ-3 GSM & 3G Jammer product as a PDF please click MPJ-3 GSM & 3G Jammer.
To view our related MPJ-20 High Power GSM Jammer product as a PDF please click MPJ-20 High Power GSM Jammer.
For more information - please click here to contact us.
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