SZ Vodasafe PJ810N 8-Way Outdoor Prison Use Wireless Signal Jammer
SZ Vodasafe PJ810N is a high-performance all-in-one outdoor signal shielding device independently developed by our brand, integrating mature domestic and international RF interference technology. As an upgraded model compared with VS-PJ6100N, this unit adopts a complete 8 independent signal output channels, fully equipped with built-in network centralized monitoring function that the base PJ6100N version lacks. It delivers stable, full-band wireless signal suppression with a shielding coverage radius ranging from 5 to 50 meters under standard -80dBm field strength environment, perfectly eliminating unauthorized wireless communication behaviors in both indoor and outdoor restricted areas.

This jammer can fully block mainstream cellular communication signals including 2G, 3G, 4G and 5G networks, as well as dual-band Wi-Fi, GPS, and various covert cheating wireless devices such as invisible earpieces, signal pens, watch transmitters and glasses probe transmitters. It creates a fully closed wireless isolation zone, effectively stopping candidates from using communication tools to cheat, cutting off illegal cross-zone communication in correctional facilities, and eliminating hidden explosion risks in flammable and explosive sites, while maintaining quiet and confidential environments for meetings and archives.
The whole machine adopts integrated aluminum alloy die-casting housing with integrated heat sink structure, matched with professional IP65 waterproof aviation interfaces and fully sealed casing, supporting long-term stable outdoor wall-mounted or pole-mounted installation without extra waterproof modification. It complies with international human body radiation safety standards, and the directional jamming design only targets downlink terminal signals without causing interference to surrounding base stations and normal public communication infrastructure.

Core Product Advantages & Key Features
- Upgraded 8 Independent Full-Band Output Channels
Different from the basic VS-PJ710 series with fewer built-in channels, PJ810N reserves 8 fully independent RF power amplification modules as standard configuration, each channel supports steady 37dBm fixed output power, and single-channel power can be adjusted up and down according to on-site shielding range demands. The 8 pre-configured frequency bands cover all mainstream public wireless communication spectrums globally: the first channel covers 790-821MHz 4G LTE downlink frequency band, the second channel targets 925-960MHz 2G GSM frequency, the third channel works on 1805-1880MHz DCS 2G band, the fourth covers 2110-2170MHz 3G WCDMA signal, the fifth is for 2500-2690MHz 4G TD-LTE, the sixth channel covers 3500-3700MHz mainstream 5G NR frequency band, the seventh corresponds to 2400-2500MHz 2.4GHz Wi-Fi and Bluetooth signals, and the eighth channel shields 5150-5825MHz 5.8GHz high-frequency Wi-Fi. Users can freely select and activate single or multiple bands on demand without mutual signal crosstalk between modules.
2)Built-In Network Centralized Monitoring (Exclusive Upgrade Over PJ710 Base Version)
A core differentiated advantage of PJ810N is the native embedded network remote control module, which the standard PJ710 model does not carry. The device is equipped with a waterproof RJ45 network communication port, compatible with Lantronix XPort network configuration protocol. After completing IP address setting via network cable connection, users can access the dedicated centralized monitoring software on PC or local LAN management platform to realize full remote control: one-click remote power on/off of the whole machine, independent switch control of each shielding channel, real-time viewing of equipment operating status, temperature feedback, RF module fault alarm and historical operation log recording. Multiple PJ810N devices deployed in different areas can be uniformly managed on one management terminal, eliminating the need for on-site manual inspection and operation. Besides network remote control, it also retains infrared local remote control function for quick on-site switch operation.
3)Premium Durable & Outdoor Waterproof Structure
The main body is made of integral aluminum alloy material with integral tooth-shaped heat dissipation fins on the side, featuring ultra-high thermal conductivity to quickly export heat generated by power amplifiers during long-hour operation, supporting 24/7 non-stop continuous startup without overheating shutdown. The whole machine reaches IP65 industrial waterproof grade, all external wiring ports adopt waterproof aviation connectors, and the sealed casing can resist wind, rain, dust and temperature fluctuation, with wind resistance up to 60m/s. The working temperature range covers -20℃ to +50℃, and the applicable environmental humidity is 5%-95% non-condensing, adapting to harsh outdoor working conditions such as open-air gas stations, outdoor prison perimeter and outdoor conference venues.

4) Intelligent Self-Protection & Stable Operation System
Each RF channel is equipped with independent overheating, over-power and VSWR standing wave anomaly automatic detection circuit. Once a single module fails or overheats, the system will automatically cut off the faulty channel alone without shutting down the whole machine, and feed back fault codes to the network monitoring platform in real time. The internal circuit adopts imported components and slow-start circuit design, which avoids instantaneous sparking during power switch and reduces internal component wear, greatly extending the overall service life of the equipment. The built-in directional vertical polarized antenna has standing wave ratio lower than 1.8 and built-in direct lightning grounding protection, effectively avoiding lightning damage during outdoor deployment.
5) Safe & Targeted Shielding Performance
The jamming signal only acts on the receiving downlink of mobile terminals and wireless cheating equipment, will not generate signal interference to surrounding communication base stations, broadcast equipment and other non-target communication facilities. The radiation emission level meets international ICNIRP human body safety standards, long-term surrounding exposure will not cause harm to human organs and nervous system. The shielding radius can be flexibly adjusted by modifying single-channel output power, covering small independent rooms of 5 meters to large open spaces of 50 meters, adapting to different space sizes of examination rooms, detention houses and conference halls.
6) Complete Installation Compatibility
The machine supports two mainstream installation modes: wall-mounted installation and 40mm diameter pole holding installation. The full set of matched installation accessories is delivered together with the host, including angle adjusters, fixed wall plates, pole clamps and complete specification screws, gaskets and expansion bolts. Users can adjust the radiation angle of the equipment arbitrarily through the angle adjuster to achieve uniform full coverage of the target shielding area, and the indicator light side of the equipment needs to face the ground during installation to guarantee optimal shielding effect.

Full Applicable Scenarios
1) Examination & Education Venues
All kinds of school classrooms, university examination halls, vocational qualification test centers and student dormitories. The PJ810N shields hidden wireless cheating devices including invisible earphones, signal pens, smart watch transmitters and glasses probes, completely blocking wireless signal cheating channels and ensuring fair examination environment.
2) Correctional & Law Enforcement Sites
Prisons, detention centers, interrogation rooms, labor reform facilities and court trial halls. It cuts off illegal private communication between detainees and outside personnel, prevents escape-related wireless contact and illegal information transmission, and maintains the order of law enforcement and supervision.
3) Flammable & Explosive Industrial Areas
Gas stations, oil depots, liquefied gas storage stations and chemical production workshops. Mobile phone wireless signals may trigger electrostatic explosion risks in such sites; PJ810N fully blocks all cell phone signals to eliminate hidden safety hazards.

4) Confidential Government & Military Occasions
Military restricted zones, government confidential offices, negotiation rooms, VIP mobile security vehicles and high-level political meeting venues. It prevents wireless eavesdropping, signal interception and confidential information leakage, fully protecting sensitive internal data.
5) Public Quiet & Restricted Signal Areas
Theaters, libraries, churches, closed conference rooms and exhibition halls. It avoids mobile phone ringing and private calls disturbing the on-site environment, creating a quiet, undisturbed space for participants and visitors.
Technical Parameters
The power supply standard of SZ Vodasafe PJ810N is AC 220V alternating current, with total overall power consumption controlled at 200W under full channel startup state. The overall weight of the complete machine is 9.7 kilograms, and the external dimension length × width × height is 400mm × 288mm × 155mm. The built-in directional antenna has 7dBi gain, 50 ohm input impedance, vertical polarization mode and intermodulation index lower than -107dBm, with single antenna power capacity up to 50W and SMA standard antenna interface.
The effective shielding radius ranges from 10 to 50 meters under standard -80dBm field strength; the actual coverage distance will slightly fluctuate according to the local base station signal strength and indoor/outdoor obstacle shielding conditions. The storage humidity and working humidity of the equipment are both controlled within 5% to 95% non-condensing range, and the IP65 waterproof rating supports year-round outdoor deployment without extra protective housing.

Standard Packing Accessories
A complete set of PJ810N shipment includes one waterproof sheath RJ45 network communication cable, one infrared remote controller for local operation, one angle adjuster for radiation angle adjustment, one fixed wall mounting bracket, one pole holding clamp, one wall-mounted installation plate, matched M5 and M6 series screws, elastic gaskets, flat gaskets and plum blossom gaskets of corresponding quantities, as well as four M6 expansion bolts for wall fixing. All accessories are made of anti-rust metal material to adapt long-term outdoor use.
Customization Services Supported by SZ Vodasafe
We provide personalized modification services for PJ810N according to customer on-site demand. First, frequency band customization: adjust, add or delete any of the 8 standard channels, and develop special frequency modules for regional exclusive communication bands or special wireless cheating equipment. Second, single-channel output power adjustment: raise or lower the 37dBm standard power of each channel independently to balance shielding range and energy consumption. Third, extended network management functions: upgrade real-time equipment status cloud upload, multi-device linkage alarm and third-party security system docking functions. Besides, OEM brand logo printing and customized outer casing color are available for bulk orders.
Operation & Installation Guidelines
1) Installation Steps
First, unpack the equipment and check whether the host and all matching accessories are intact; contact after-sales support immediately if any parts are missing or damaged. Choose wall-mounted or pole-mounted installation mode according to the site environment, assemble the required brackets, clamps and gaskets first. For wall mounting, drill fixing holes using the wall plate as a template, install expansion bolts and lock the fixing plate firmly on the wall; for pole installation, use the dedicated clamp to fix the host on the 40mm diameter holding pole. Adjust the optimal signal radiation angle via the angle adjuster and tighten all fixing screws completely. Connect the waterproof RJ45 network cable to the host network port and connect the other end to the switch or PC for network configuration; finally plug the power cord into AC 220V power supply to finish installation. It is mandatory to install the built-in antenna vertically to the ground before powering on the machine; never remove the antenna when the jammer is running.
2)Two Operation Modes
Infrared Remote Local Control: Press the green ON key to start the equipment, all RF power amplifiers will activate and the yellow RF indicator at the bottom lights up; press the red OFF key to stop shielding work, all power modules shut down and the indicator goes out.
Network Remote Centralized Control: Complete network IP configuration via supporting software for first-time use or network environment replacement. After successful network connection, operators can remotely start or stop the whole machine, switch single shielding channels, adjust power parameters and check real-time equipment fault information through the centralized monitoring platform without arriving on site.
Standard Shutdown Process
First cut off all RF shielding channels through remote control or network software; disconnect the AC 220V power cable; remove the waterproof network cable if long-term shutdown storage is needed. For outdoor long-term standby, regularly check the sealing state of all waterproof interfaces to prevent rainwater infiltration.
Important Usage Notes
Arrange the equipment in well-ventilated positions and avoid large metal obstacles in front of the radiation surface, otherwise the effective shielding distance will be reduced. Do not place the machine in closed damp pits, high-temperature enclosed spaces or strong magnetic field environments. Disassembly and internal modification by non-professional personnel are strictly prohibited; once abnormal power failure, indicator disorder or continuous overheating occurs, stop using immediately and contact official technical support for maintenance. Damage caused by human misoperation, unauthorized disassembly and improper installation will not be covered by free after-sales maintenance service.

After-Sales Support
SZ Vodasafe provides full-cycle technical support for all PJ810N purchasers, including pre-sales frequency band matching scheme design, on-site installation technical guidance, post-delivery equipment failure troubleshooting and customization demand docking. Product specifications and functional parameters will be updated synchronously with communication technology iteration, and the brand reserves the right to optimize product details without prior notice. We welcome customers to feed back equipment operation experience and optimization suggestions to continuously upgrade the performance of PJ810N outdoor signal jammer.