Metal Detectors. With more than 70 years experience, AUTOCLEAR/Control Screening, LLC specializes in the design and manufacture of innovative X-ray Scanners, as well as Federal Labs’ CheckGate Walkthrough and HandWand Handheld Metal Detectors, and Scintrex Explosives and Narcotics Trace Detection Systems. Our mission is to ensure the safe, reliable, and cost-effective detection of weapons, narcotics, explosives, and other contraband. Contact us today to discuss your current screening needs.