Vasthi Instruments are global leaders in the manufacturing of CAAQMS, so2 analyzers, gas analyzers, gas detectors, Ozone Analyzers, online calibrator for calibration, dew point analyzers, particulate monitors, Continuous Ambient air quality monitoring system, stack gas analyzers and have been supplying instruments to customers worldwide, Our multidisciplinary team of scientists, physicians, engineers, and regulatory consultants with decades of global experience brings you the quintessential mechanism that provides complete safety accuracy and durability. Vasthi Engineers was formed with visionary thinking and innovative ideas resulting in innovative products and solutions. We enhance our product quality through the continuous process of research and development. We have a WIDE range of models to suit various site conditions and processes.