Signals Defense Product Catalog
The 2026 Signals Defense catalog is here and contains information on our best selling Signals Defense products including: RF/IR window films, foils, tapes, paints, caulk, and Lockmasters RF/STC doors and locks.
Signals Defense requests your contact information in order for us to mail samples, email specifications, and download documents.
Building Shielding Experts
Thank you for considering Signals Defense for your building shielding needs. We are thrilled to share our product catalog for your reference. We have continued to expand our product line to cover all of your shielding requirements.
Safeguard Sensitive Data with Emission Security
Safeguard Sensitive Data with Emission SecurityDid you know that emission security is a critical component of facility protection in sectors handling sensitive data? For over 25 years, Signals Defense has specialized in advanced RF (Radio Frequency) and IR (Infrared)...
Mitigating Electronic Eavesdropping
The Hidden World of Electronic EavesdroppingEavesdropping—secretly listening to a conversation—is nothing new. But the classic “person listening in nearby” is no longer the biggest concern. Today, many adversaries are turning to electronic eavesdropping to capture...
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Owings Mills, MD. 21117