The rapid spread of new technology has raised the level of concern about electric and magnetic field (EMF) interference and has greatly increased the consequences of that interference. Substantial research, funded by the electric utility industry and others, has improved the characterization and management of extremely low frequency (ELF) magnetic fields from power systems, particularly from sources inside buildings, like transformer vaults, switch gear and bus ducts. Increasing sensitivity of computer monitors, medical devices and other electronic equipment to ELF magnetic fields requires field management and suppression technology that achieves substantially lower values than available through conventional techniques.

Most recently, real estate and architectural professionals have demanded preemptive design of low EMF buildings - creating buildings that are intrinsically immune to electromagnetic interference from internal and external sources.

CEI carries out site investigations and is accredited for on site EMC testing. We also provide the measurement of shielding effectiveness from DC to the microwave frequency range.