SZ Vodasafe VS-D12Pro High Power Stationary 12-Band Signal Jammer

SZ Vodasafe VS-D12Pro High Power Stationary 12-Band Signal Jammer

SZ Vodasafe is a professional manufacturer specializing in high-performance RF signal shielding and security interference equipment, dedicated to developing reliable, long-running signal blocking solutions for authorized confidential, silent and signal-restricted scenarios worldwide. The VS-D12Pro is our flagship heavy-duty stationary jammer, built for large-area full-spectrum signal isolation, supporting both fixed indoor installation and vehicle-mounted deployment to meet diverse professional security demands.

The VS-D12Pro is a heavy-duty 12-channel high-power stationary signal jammer, engineered with an independent single-band control design and equipped with 12 high-gain omnidirectional external antennas. It delivers a maximum total output power of 240W, capable of creating a fully wireless-prohibited isolation zone covering a radius of 50 to 150 meters under ambient signal strength ≤ -85dBm. Within its shielding coverage, all wireless communication devices lose signal transmission capabilities: mobile phones cannot make/receive calls, send text messages or access cellular internet; walkie-talkies, GPS trackers, Lojack positioning modules, Wi-Fi, Bluetooth, remote control transmitters and satellite communication equipment will all be completely disabled.

This model adopts dual-purpose design for stationary indoor placement and vehicle installation. When matched with a dedicated DC27V car power inverter, it can be mounted on cars, buses and trains to realize mobile full-range signal shielding, making it an all-in-one professional jamming device for fixed and mobile security scenes.

Advantages & Key Features

1)Ultra-High Total Output Power & Wide Coverage Performance

With a total output power of 240W, each frequency band carries independent power amplification modules with separate power distribution ranging from 10W to 25W per channel. Compared with medium-power indoor jammers, its shielding radius is significantly expanded, reaching up to 150 meters in weak signal environments, perfectly fitting large-space venues such as large conference halls, exam campuses and court buildings. It adopts sweep jamming technology to realize seamless coverage of target frequency bands without signal leakage dead zones.

The machine body is fitted with an independent single-band control switch for each of the 12 channels. Users can freely turn on or shut off any single frequency band without interfering with the normal operation of other channels. This flexible control allows customized shielding schemes: users can only block mobile phone signals while retaining Wi-Fi, or cut off GPS positioning alone, which greatly improves equipment utilization and avoids unnecessary full-spectrum interference. The front panel is equipped with a clear power indicator light to display the operating status of the whole machine in real time.

The VS-D12Pro is built with a heavy-duty aluminum alloy heat sink shell with dense heat dissipation tooth grooves, paired with multiple built-in large cooling fans. The multi-fan circulating heat dissipation system quickly discharges internal heat generated by high-power modules, supporting uninterrupted 24-hour all-day operation without overheating shutdown. The equipment adapts to wide temperature working environments, with operating temperature ranging from -20℃ to +50℃, and storage temperature ranging from -40℃ to +60℃, suitable for long-term use in air-conditioned indoor venues and ventilated semi-outdoor spaces.

All electromagnetic field (SAR) emission parameters of the VS-D12Pro fully comply with ICNIRP international human radiation safety standards. Under standardized installation and vertical antenna placement, the RF radiation around the equipment will not cause health hazards to nearby staff, realizing the balance between strong shielding performance and human body safety.

For fixed indoor use, it supports universal AC input of 100–240V 50/60Hz, matched with a standard AC-DC 27V power adapter. For vehicle-mounted mobile use, the device only supports DC24–27V power input; users need to configure a car power inverter with a minimum rated power of 350W to convert vehicle storage battery power into stable DC27V power supply, which can be applied on sedans, buses and rail transit vehicles.

The equipment structure adopts a modular split design for each frequency band. If a single channel fails, only the corresponding band module needs to be replaced without disassembling the whole machine, greatly reducing post-maintenance difficulty and cost. The operation panel is simple and intuitive, with an independent main power ON/OFF switch, DC power input port and band control switches, requiring no professional RF technical knowledge for daily operation. The matched 5dBi omnidirectional antennas feature plug-and-play installation, and the whole machine supports quick disassembly and assembly for transport and relocation.

We provide two standard frequency preset versions for global regions: American Standard Frequency for North, Central and South America, and European Standard Frequency for Europe, Asia, Australia, the Middle East and Africa. Besides the 12 built-in core bands, we support personalized frequency customization according to client demands, covering optional extended frequency modules including Lojack 173.03MHz, CDMA450MHz, full-series GPS/GLONASS/Galileo multi-band positioning signals, 1.2G wireless camera signals, 315/433/868MHz car remote control bands, VHF/UHF walkie-talkie bands, satellite phone frequency bands, and dual 5.1–5.9GHz high-frequency Wi-Fi bands.

Applicable Scenarios

The VS-D12Pro is widely applied in all authorized places that require wireless signal isolation, information confidentiality or silent management:

Confidentiality venues: Large conference rooms, government meeting halls, courts, recording studios, banks, factory confidential workshops, military authorized isolation areas, museums and galleries, to prevent confidential information leakage via mobile communication and wireless transmission.

Examination & education venues: Large exam classrooms, training centers, campus examination zones, to eliminate cheating behaviors through mobile phones, Bluetooth earpieces and wireless transmission equipment.

Silent public venues: Churches, cinemas, concert halls, theaters and restaurants, to avoid sudden phone ringing disturbing the public environment.

Mobile vehicle scenes: Trains, buses, official security vehicles, when equipped with matched vehicle power inverters, to realize temporary signal isolation during transportation.

Other signal-restricted sites: Hospitals, gas stations and other special equipment operation areas (field pre-test is required before deployment to avoid interference with medical, monitoring and industrial instruments).

Technical Specifications

Total output power reaches 240W, with each band allocated independent power from 10W to 25W. The effective shielding radius ranges from 50 to 150 meters, and the actual coverage distance is adjusted according to local mobile network signal density; the weaker the ambient signal, the larger the isolation range. The jamming mode is sweep jamming to ensure full frequency band coverage without signal blind spots.

Antenna Parameters

Equipped with 12 pieces of external 5dBi omnidirectional high-gain antennas as standard accessories. The installation specification requires all antennas to be vertically perpendicular to the ground during operation to guarantee uniform omnidirectional shielding effect.

Power Supply Parameters

Indoor fixed power supply: AC adapter with input 100–240V AC 50–60Hz, output DC27V.

Vehicle power supply requirement: Stable DC24–27V input, vehicle storage battery minimum output power ≥ 350W, supporting DC12V/24V to DC27V power inverter matching.

Environmental Adaptation

Operating temperature: -20℃ ~ +50℃; Storage temperature: -40℃ ~ +60℃;

Applicable air humidity: 5% – 80% non-condensing environment. Outdoor deployment requires additional waterproof protection measures for the main unit and power supply.

Physical Dimension & Weight

Host size (excluding antennas): 800mm (Length) × 350mm (Width) × 95mm (Height);

Net weight of the whole machine: 18kg, heavy-duty aluminum alloy housing with anti-rust and wear-resistant surface treatment.

Standard Frequency Band Allocation

1.America Standard Version (USA, Canada, Mexico, South America)

GSM850MHz (850–894MHz), output power 25W, covers CDMA/GSM 2G signals

GSM1900MHz (1920–1990MHz), output power 20W, covers 2G GSM/CDMA/PCS1900

4GLTE700MHz (700–800MHz), output power 25W

3G2100MHz (2100–2170MHz), output power 20W, covers UMTS/WCDMA/TD-SCDMA

Wi-Fi & Bluetooth 2.4G (2400–2500MHz), output power 20W

4G WiMAX / LTE2600MHz (2500–2700MHz), output power 20W

5G 600MHz (617–698MHz), output power 20W

5G 3500MHz (3400–3800MHz), output power 20W

GPS/Glonass/Galileo L1 (1570–1620MHz), output power 10W

GPS/Glonass/Galileo L2 (1200–2300MHz), output power 20W

868/915MHz (830–920MHz), output power 20W

433/434MHz remote control band, output power 20W

Europe Standard Version (Europe, Asia, Australia, Middle East, Africa)

GSM900MHz (925–960MHz), output power 25W

GSM1800MHz (1805–1880MHz), output power 20W

4GLTE700MHz (738–821MHz), output power 25W

3G2100MHz (2100–2170MHz), output power 20W, covers full 3G global standards

Wi-Fi & Bluetooth 2.4G (2400–2500MHz), output power 20W

4G WiMAX / LTE2600MHz (2620–2690MHz), output power 20W

5G 1500MHz (1400–1570MHz), output power 20W

5G 3500MHz (3400–3800MHz), output power 20W

GPS/Glonass/Galileo L1 (1570–1620MHz), output power 10W

GPS/Glonass/Galileo L2 (1200–2300MHz), output power 20W

868/915MHz industrial wireless band (830–920MHz), output power 20W

433/434MHz remote control signal band, output power 20W

Optional Custom Extended Frequency Bands

Clients can select any combination of the following frequency modules to replace the standard 12 bands according to local regulatory and shielding requirements: Lojack 173.03MHz, CDMA450MHz (430–450MHz & 460–470MHz), full GPS multi-positioning bands (L1/L2/L3/L4/L5), 1.2G wireless camera frequency, car remote control bands (315MHz, 433MHz, 868MHz, 920–965MHz), VHF/UHF walkie-talkie full bands, satellite phone communication band (1520–1670MHz), dual high-frequency Wi-Fi bands (5100–5500MHz and 5500–5900MHz). We support full ODM & OEM frequency customization services.

Standard Package Contents

1 × SZ Vodasafe VS-D12Pro jammer main host

1 × Matching AC power adapter (110V or 220V global universal specification)

12 × 5dBi omnidirectional matched antennas

Important Safety & Operation Notices

1.Antenna installation priority rule: Never turn on the main power supply before all 12 antennas are fully screwed onto the host antenna ports. Do not remove or disassemble any antenna while the jammer is powered on; operation without antennas will instantly burn the internal power amplification modules and void the warranty.

2.Installation ventilation requirement: The equipment must be installed in a well-ventilated open area. Avoid placing large obstacles or metal shielding objects around the host, which will severely reduce the effective shielding radius and cause internal heat accumulation.

3.Outdoor deployment protection: If the VS-D12Pro needs to be used outdoors, users must configure independent waterproof boxes, rain shields and moisture-proof power supplies to prevent water infiltration from damaging the circuit.

4.Antenna placement standard: All antennas must be kept vertically perpendicular to the ground during operation; tilted or horizontal placement will lead to uneven signal shielding coverage and shortened equipment service life.

5.Vehicle-mounted power matching limit: Only DC24–27V stable power input is supported for vehicle use. The vehicle storage battery must provide a minimum output power of 350W, and the matched power inverter must have a constant voltage output of DC27V; mismatched voltage will cause the machine to fail to start or burn out power modules.

6.Usage compliance reminder: This equipment is only for authorized, licensed signal isolation scenarios in accordance with local radio communication regulatory laws. Unauthorized private deployment that interferes with public communication networks, emergency call signals, aviation and medical equipment is prohibited in most regions globally. Clients shall bear all legal liabilities arising from improper unlicensed use.

After-Sales Service Support

SZ Vodasafe provides one-year factory warranty service for the VS-D12Pro model starting from the delivery date. Within the warranty period, non-human damage module failures can enjoy free replacement and remote technical guidance. We offer global technical consultation, pre-sales frequency scheme customization, post-sales installation guidance and after-sales maintenance support for all bulk order clients, and accept customized logo silk-screen OEM services for large-quantity orders.