Scientific, research, navigation, surveying, photographic, cinematographic, audiovisual, optical, weighing, measuring, signalling, detecting, testing, inspecting, life-saving and teaching apparatus and instruments, namely, light meters, luminance meters, smart lighting controllers, smart home sensors, motion detectors, smoke detectors, carbon monoxide detectors, smart thermostats, energy meters, electrical testers, home automation hubs, smart switches, smart plugs, smart lighting bulbs, occup...