Triple‑Layer NX3 Faraday Bags
NX3 Series Faraday Bags
NX3 Series Faraday Bags
The NX3 Series is a professional range of signal‑blocking Faraday bags designed to help isolate electronic devices from wireless communications during transport, storage and controlled handling. Built with triple‑layer shielding fabric and a practical fold‑over closure, NX3 bags are well suited to operational teams who need reliable RF isolation without adding complexity to their workflow.
NX3 bags are commonly used to reduce exposure to remote access, tracking and unintended connectivity by limiting signals such as cellular (including 4G/5G), Wi‑Fi, Bluetooth, GPS/GNSS and RFID when the bag is correctly sealed and handled in accordance with local SOPs.
Why choose the NX3 Series
- Triple‑layer shielding construction: Designed to deliver high attenuation across a wide frequency range for consistent isolation performance.
- Operationally simple closure: Fold‑over, double‑roll style sealing makes it easy to insert, remove and reseal devices during high‑throughput handling.
- Lightweight and reusable: Suitable for daily use across field and facility environments.
- Standardise your capability: A consistent product family across multiple sizes makes it easier to train staff, write SOPs and manage stores.
NX3 size options (mm)
The NX3 Series is available in multiple sizes to suit phones through to laptops and larger electronics. Dimensions below are shown in millimetres.
For best fit, measure the device including any protective case and allow clearance for tags, cable tails and evidence packaging.
| NX3 size | Internal size (approx.) | Typical fit |
|---|---|---|
| Mini | 127mm × 178mm | Phones, key fobs, cards, small electronics |
| Small | 203mm × 254mm | Larger phones, compact devices, small tablets and accessories |
| Medium | 305mm × 457mm | Tablets, radios, small laptops and bundled device packages |
| Large | 406mm × 508mm | Laptops, larger tablets, multiple devices in one bag |
| Extra‑Large | 457mm × 711mm | Large electronics, bulky evidence packages and multi‑device carriage |
Typical applications
- Digital forensics and investigations: Device isolation during intake, transport, triage and staged storage prior to controlled examination.
- Protective security: Supporting RF‑managed device policies in sensitive environments and secure facilities.
- Operational deployments: Moving devices through areas where you want to reduce connectivity and tracking exposure.
- Keyless entry protection: Shielding vehicle key fobs and small transmitters during storage or transport.
Selection and use guidance
- Size up when in doubt: Protective cases, ruggedised phones and evidence tags can add significant bulk.
- Closure discipline matters: Signal isolation depends on correct sealing every time—build a quick closure check into your SOP.
- Consider layered handling: Some teams place each device into an NX3 bag, then store multiple bags in a locker or transport case for better organisation.
Why source Faraday solutions through J3Seven
- Workflow-first advice: We help you standardise the right NX3 size mix based on your device fleet and handling processes.
- End-to-end RF isolation capability: J3Seven can support complete solutions including Faraday bags, lockers, charging workflows and room‑scale enclosures.
- Procurement support: Assistance with specification and fit‑for‑purpose selection for government, defence and enterprise environments.
Need help selecting the right NX3 sizes (and quantities) for your operational mix? Contact J3Seven and we’ll help you standardise a practical, scalable RF isolation workflow.

