detectors and monitoring alarms, namely measurement detectors and signaling devices; all the aforesaid being for detecting gas purity, airborn dust particles, dust, smoke or pollution

SMOKE DETECTORS

MONITORING AND DETECTION DEVICES FOR DETECTING GAS PURITY, AIRBORNE DUST PARTICLES, DUST, SMOKE OR POLLUTION

Electronic air pollution monitoring systems, comprised of lasers, computer hardware and software used to monitor air pollution, and detect particles, gas, biohazards, smoke and fire, and parts therefor; electronic control fire alarm systems, comprised of computer hardware and software, electronic controls, input and output devices, namely fire alarm control panels, environmental monitoring and control panels and parts therefor, air pollution monitors, particle detectors, gas detectors, biohaz...