C1900/0273/0270B is an LCD chart-recorder display board designed for ABB’s Commander 1900 series, providing the dedicated display interface for the recorder's data. The part is cataloged as C1900/0273/0270B (also listed as C190070273-0270B) and is explicitly described as a Chart Recorder Display LCD Board for the Commander 1900. This module is discontinued by the manufacturer and weighs about 0.15 lbs, making it a compact replacement for legacy installations that still rely on Commander 1900 equipment.
