Apparatus for analysing gases; Device for testing the function and effectiveness of smoke detectors, carbon monoxide detectors and heat detectors featuring an aerosol spray; Dust protective masks; Electrified fences; Electronic control gears (ECGs) for LED lamps and light fixtures; Electronic devices for locating and tracking people, pets using cellular communication networks; Fiber optic cables; Fibre-optic cables; Fibre optic cables; Infant movement alarms; Luminous signs for safety purpose...