Maintenance-free, no-consumables online DGA monitor that uses a vacuum (partial vacuum) gas-extraction method to maximize extraction efficiency and keep results stable regardless of oil type, temperature, or pressure. It continuously measures all diagnostic fault gases (max 9) plus moisture and  Total Gas Pressure to quickly flag air ingress. Hermetically sealed optics and IR reference measurement with close to 0 drift and no false alarms. Delivering dependable long-term trending without carriers, filters, or scheduled service on key components in full lifetime.