Profile: G J D Manufacturing Ltd. specializes in the design, manufacture and supply of professional exterior detection equipment & CCTV and lighting controllers utilized in the intruder surveillance industry. Elite intruder detection alarm systems is a low voltage, weatherproof external device with two volt free timed contacts and is designed to simultaneously or individually control not only lighting controllers, but also CCTV switchers and digital video recorders providing systems with a versatility that cater for any domestic, commercial or industrial requirement. We also provide a range of auxiliary surveillance devices compatible with all major CCTV systems. Quad PIR external detector is a remarkable robust external detector with an optimum mounting height of 3m. Equipped with a pan and tilt dual infra-red scanner module with two volt-free and two negative switched outputs. It can be used to control cameras and also interfaces with our lighting control systems.