Security Products International (SPI) is the leading manufacturer and distributor of advanced, high resolution overt and covert surveillance equipment since 1991. SPI is based out of Rock Hill, South Carolina, a thriving suburb in the region and bordering North Carolina’s fastest growing economies. Our team is comprised of engineers and technicians who specialize in investigative tools and all aspects of investigative and information technology. We supply customized security & surveillance solutions for your protection and prosecution needs. We cater to all markets but specialize in CCTV & IP security solutions and covert video.