Category for specialized environmental control equipment and environmental measurement instruments used in manufacturing sites. Handles professional environment-related equipment including temperature, humidity, and atmospheric pressure control systems in factories, environmental control systems for clean rooms, workplace environment measuring instruments, noise and vibration measurement devices, gas detectors, dust meters, illuminance meters, radiation measuring instruments, and other specialized environmental equipment. Includes environmental monitoring and control devices necessary for quality control in manufacturing processes, worker safety assurance, and regulatory compliance, targeting special-purpose equipment not classified under general environmental devices.