SZ Vodasafe VS-P12L Portable 12-Band Signal Jammer
SZ Vodasafe VS-P12L is a high-performance handheld portable full-band signal jammer independently developed by SZ Vodasafe, integrating 12 independent signal shielding channels in one compact aluminum alloy housing. Equipped with a high-efficiency heat dissipation system, detachable omnidirectional antennas, independent DIP band control switches and a large-capacity built-in rechargeable battery, this device can comprehensively block mainstream wireless signals including 2G/3G/4G/5G cellular networks, dual-band GPS (L1/L2), 2.4GHz & 5.8GHz Wi-Fi signals. It supports dual power supply modes of household AC charging and vehicle DC charging, delivering flexible mobile shielding performance for confidential meetings, quiet public venues and information security scenarios.
VS-P12L Host Device
Full Package Accessories
Device Structure Marking Diagram
DIP Switch Detail
The whole machine adopts an integrated gray aluminum alloy shell with integrated heat dissipation grooves on the surface, paired with two built-in cooling fans to form an efficient heat dissipation structure, effectively solving the heat generation problem during long-time continuous operation. Each signal channel corresponds to an independent SMA antenna interface and a dedicated working indicator light, and users can freely turn on or off any single frequency band through the side-mounted DIP toggle switches without interfering with the normal shielding function of other channels. The overall design balances portability and shielding power, and the standard configuration comes with complete matching accessories for indoor fixed use and vehicle mobile use.
Standard Package Accessories
One set of complete SZ Vodasafe VS-P12L product includes all supporting parts required for installation and operation:
1 unit of VS-P12L signal jammer main host
1 piece of AC power adapter, converting AC 110-240V household alternating current to DC 12V stable power supply
1 set of car charger, compatible with vehicle DC 12V-24V power interface for in-car use
12 pieces of matched omnidirectional high-gain antennas, each antenna features 2.0dbi gain with a length of 133mm, matching each of the 12 signal channels separately
Installation & Operation Guidelines
1)Pre-Use Charging Instructions
Before the first formal use, users must charge the built-in battery continuously for at least 8 hours. Remember to turn off the main power switch of the device before connecting the charger to the charging port on the side of the host. The charging status can be judged via the dedicated charging indicator light: the light glows red during normal charging, and turns solid green once the battery is fully charged to stop charging automatically.
2)Antenna Installation Steps
Align each omnidirectional antenna with the independent SMA connector on the top of the host one by one, then screw and tighten every antenna firmly by hand. Strictly avoid powering on the device without fully installing all antennas, as missing or loose antennas will seriously damage the internal power amplifier modules and greatly reduce the effective signal shielding coverage. Incorrect antenna installation will also lead to uneven shielding range and weak blocking effect.
3) Power On & Channel Control Operation
After all antennas are installed correctly, toggle the main power switch on the side of the device to the ON position. The main power indicator will light up solid green, and each channel’s dedicated working LED will light up synchronously as default. All DIP switches are set to the OFF state before factory delivery.
The digital labels on the DIP switch module correspond to the 12 antenna channels one-to-one, and the white toggle paddles control the working status of each independent frequency band: flip the paddle upward to activate the corresponding shielding channel, flip downward to disable the band. Once a channel is turned off via the DIP switch, its matching working LED indicator will go out immediately, and the device stops blocking signals of that frequency range without affecting other channels.
Critical Safety & Usage Notes
Signal interference prevention: After powering on the VS-P12L device, keep it far away from electronic equipment including laptops, desktop computers, televisions, stereos and AM/FM radios, to prevent the jammer’s transmitting signal from causing abnormal interference to these devices.
Operating temperature control: The safe normal working temperature range of this jammer is 45°C to 60°C. If the surface temperature of the shell exceeds this range during operation, cut off the power supply immediately and contact SZ Vodasafe local after-sales service agents for inspection.
Shielding range optimization: The actual effective shielding radius is affected by the strength of surrounding mobile communication base station signals. To achieve maximum shielding coverage, place the device at a height of about 2 meters above the ground during use. The standard shielding distance ranges from 1 to 25 meters under a signal strength of -75dBm.
Special scene pre-test requirement: When deploying the jammer in hospitals, gas stations and other special places with precision instruments or flammable supplies, complete an on-site test in advance to confirm no harmful interference to the normal operation of local equipment.
Core Technical Specifications
- Independent Shielding Frequency Bands & Output Power
Each of the 12 channels is equipped with an independent power amplifier module, with a single channel average output power of 30dBm (1W), and the total comprehensive output power of the whole machine reaches 12W after matching high-gain antennas. The covered frequency ranges for each channel are listed as follows:
Channel 1: 2G/4G cellular signal, frequency range 869-960MHz
Channel 2: 3G/4G cellular signal, frequency range 2010-2170MHz
Channel 3: Sub-6GHz 5G signal, frequency range 3400-3600MHz
Channel 4: 2G/4G DCS signal, frequency range 1805-1920MHz
Channel 5: GPS L2 & L5 positioning signal, frequency range 1170-1280MHz
Channel 6: 2.4GHz Wi-Fi wireless network signal, frequency range 2400-2485MHz
Channel 7: 4G/5G mid-band cellular signal, frequency range 2515-2675MHz
Channel 8: Low-frequency 5G cellular signal, frequency range 750-803MHz
Channel 9: 5.8GHz high-frequency Wi-Fi signal, frequency range 5725-5850MHz
Channel 10: 2G/4G DCS extended band signal, frequency range 1805-1920MHz
Channel 11: GPS L1 main positioning signal, frequency range 1550-1580MHz
Channel 12: 2G/4G GSM extended band signal, frequency range 869-960MHz
2)Power Supply & Battery Parameters
The VS-P2L supports dual power supply modes for flexible use scenarios:
Fixed indoor power supply: Matched AC adapter converts AC 110V-220V mains power to stable DC 12V power for continuous plug-in operation.
Mobile vehicle power supply: Supporting DC 12V-24V vehicle power interface via the dedicated car charger for use in cars, buses and other transport vehicles.
The built-in rechargeable lithium battery inside the host is rated 7.8V 12000mAh. Under full power shielding status, the continuous working time of the battery lasts 1 to 2 hours, and the battery supports repeated cycle charging for long-term service life.
3)Appearance & Weight Parameters
Excluding the antennas, the host dimension is 160mm (height) × 90mm (length) × 56mm (width). The net weight of the main body without antennas is 1.25kg, and the total gross weight of the complete packaged set with all accessories is approximately 2.0kg. The outer packing box size is 26cm × 19cm × 8.5cm, convenient for handheld carrying and storage.
4)Heat Dissipation Structure
The machine body adopts a thickened aluminum alloy radiator with dense heat dissipation holes distributed on the side wall. Two built-in silent cooling fans work together with the metal heat sink to form a full-cycle heat dissipation system, which can quickly export the heat generated by multi-channel power amplifiers during long-time operation and avoid performance attenuation caused by overheating.
5)Product Core Advantages
Full-band comprehensive shielding capability: Cover all mainstream 2G/3G/4G/5G cellular communication, dual-band GPS positioning, dual-band Wi-Fi wireless signals, meeting the signal blocking demands of most information security scenarios in one single device.
Independent channel adjustable control: The DIP switch design allows users to switch any single frequency band on or off freely, supporting customized shielding without wasting power on unnecessary signal bands.
Dual power supply with large-capacity battery: Equipped with both household AC adapter and vehicle charger, plus a high-capacity built-in lithium battery, the device can realize plug-in fixed use and portable mobile use without power supply restrictions.
Reliable high-efficiency heat dissipation: Combined aluminum alloy radiator and dual cooling fans effectively control operating temperature, supporting longer continuous working time compared with ordinary handheld jammers.
Portable integrated handheld structure: Compact size and moderate weight, easy to hold and carry, suitable for temporary mobile deployment in various venues.
Customization service support: SZ Vodasafe provides OEM customized services for VS-P12L, including special frequency band adjustment, silkscreen logo printing, customized antenna matching and other personalized modifications according to customer demand.
Long-term quality guarantee: The whole machine enjoys a 1-year official warranty calculated from the delivery date of the product, with complete after-sales technical support provided by SZ Vodasafe.
Recommended Application Scenarios
SZ Vodasafe VS-P12L signal jammer is widely applicable to all venues requiring silence, information confidentiality and signal isolation:
Conference rooms, lecture halls, museums, art galleries, theaters, concert halls, churches, catering restaurants, teaching classrooms, enterprise training centers, factory production workshops, bank business halls, trains, buses and other public transport vehicles.
For special environments such as medical hospitals and gas stations with sensitive precision equipment and flammable dangerous goods, users must conduct on-site signal interference tests before formal deployment to eliminate potential risks to local equipment.
