LLumar Signal Defence Film

Since 2000, Signals Defence surface applied window films have been the US Government's choice for TEMPEST film providing high RF and IR attenuation with high visible light transmittance and low reflectivity (low aesthetic impact). Because of the high RF and IR attenuation these Films allow Secure Compartmented Information Facilities or SCIFs to have windows. From a Technical Surveillance Counter-Measure (TSCM) prospective, US Department of Defence has stated that "SD Films are the least expensive method to mitigate the largest amount of eavesdropping and espionage techniques".