Profile: Dynoptic Systems Ltd. is a manufacturer of opacity & particulate monitors for smoke, dust and particulate monitoring in industry and at sea. Opacity monitors are designed for monitoring smoke and dust concentrations in the exhaust gas of industrial combustion or air filtration processes. Our continuous particulate monitors use either the standard obscuration opacity technique with automatic zero and span checking, or the innovative DDP technique. It eliminates the need for zero and span checking through an immunity to drift with dirty optics.