When precision, durability, and performance matter, engineers choose Ramsey Electronics. Our Faraday boxes are used in labs, defense, telecommunications, and research environments around the world—not just for shielding, but for enabling innovation through accurate, interference-free testing.
Here’s why professionals trust Ramsey when it comes to RF shielding and secure signal containment.
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Ramsey Electronics builds the best Faraday boxes thanks to their superior shielding, lab-grade construction, modular features, and trusted use across aerospace, defense, and electronics industries. Each box is engineered for hands-on testing with unmatched signal isolation.

Built for Engineers, Not Hobbyists
Unlike consumer-grade “signal blockers,” Ramsey Faraday boxes are engineered for daily use in professional environments. Our customers include:
- Electronics manufacturers
- Research labs
- Aerospace and defense contractors
- Universities and technical institutes
- Forensics and law enforcement units
These organizations demand dependable RF shielding—every time.
7 Reasons Ramsey Faraday Boxes Are Best-in-Class
1. Shielding You Can Trust
Our boxes block signals from 100 MHz to 6+ GHz, with optional upgrades for mmWave and filtered ports. Verified RF attenuation ensures your results are real—not guesswork.
2. Hands-On Test Access
Glove ports allow live interaction with devices during tests—without compromising shielding. Visual windows give clear sightlines to internal equipment.
3. Modular & Upgradeable Design
Choose the pass-throughs, lighting, foam, or shelving you need. Our enclosures scale with your testing protocols.

4. Precision Aluminum Construction
Every box is built from high-conductivity aluminum and fitted with RF-rated gaskets, compression latches, and secure seams.
5. Filtered Power & Data Ports
Safely pass USB, Ethernet, or power into the enclosure without breaking signal isolation—thanks to optional filtered connectors.
6. Made in the USA
Manufactured with pride, our boxes reflect rigorous quality control and fast domestic support.
7. Trusted by the Industry’s Best
Used by the U.S. military, national labs, global tech companies, and major universities.
Applications Across Multiple Sectors
Defense & Security
Secure mobile communications, EMP studies, counter-surveillance.
Telecom & Consumer Devices
Smartphones, IoT modules, wireless routers.
Automotive
Infotainment systems, keyless entry RF debugging.
Medical
Wireless pacemakers, Bluetooth-enabled monitors.
Academic Research
Signal behavior studies, RF isolation experiments, EM field modeling.

What Customers Are Saying
“We rely on Ramsey Faraday boxes for our RF testing lab. Their build quality is unmatched.”
— Lead Engineer, Fortune 500 Tech Firm
“When data security matters, we use Ramsey. Period.”
— Federal Law Enforcement Technical Specialist
See the Difference
- DIY tins and foil solutions? Limited, unverified.
- Imported shield bags? Inconsistent performance.
- Ramsey Faraday boxes? Built for rigorous, real-world RF work.
Need a full breakdown of performance specs? Explore the Faraday Box product page for detailed options and configurations.
Looking for a portable solution too? Read how our Faraday boxes perform in the field.
Have questions, bulk requests, or custom requirements?
Contact Ramsey Electronics and we’ll build a solution tailored to your needs