Providing Open Path Air Quality Monitoring - Laser Diode is ideally is an analyzer that is deployed as primary unit in gas monitoring system- laser diode. The system is housed laser diode heads four in number. Every head is an intact data sampling and laser control system. Offered monitoring system offers faster monitoring of broader gaseous compounds. Some gases can be examined and integrated multiplexer provides several evaluating paths. Whereas, normal compounds comprise methane, water vapor, hydrogen chloride oxygen, ammonia, hydrogen fluoride, carbon dioxide and carbon monoxide. In addition, our open path air quality monitoring- laser diode has applications in ambient stations and monitoring on fence-line, urban air quality, tunnel, street-level and more.