Back Scattered Dust Monitor for Ideal monitoring opacity and smoke levels in the exhaust gas of industrial combustion or air filtration processes. It is a self-developed online dust monitoring device, which uses the mainstream technology of laser backscatter measurement with imported core components. Tribo Electric Dust Monitor is a real-time continuous indicative dust monitor with logging & alarm capability. It consists of a single probe for installation in silo or duct & a control Unit/logger.