Metal Detector Gate ZK-D3180S / Metal detector gate for individuals in Saudi Arabia, 33 zones, model ZK-D4330: ZK-D4330 gate is a security gate used to detect metals on people. It is a high-performance gate designed for use in institutions and public places. The ZK-D4330 gate features the following: 33 detection zones to ensure detection of all metals, including weapons and explosives. A 7-inch color LCD screen displays information about detection operations. Audible and visual alarm to alert users to the presence of metal. Additional security features such as mobile phone and remote control detection.