The SZ-AB100 load moment indicator is designed for articulated (knuckle-boom) cranes. It integrates a high-brightness touch display, length-angle sensor and load sensing to calculate actual load, working radius and rated capacity in real time, with multi-stage audio-visual alarms and overload interlock cutoff. The system is CE certified (LVD + EMC), comes with an English interface, and is pre-configured to the crane's load chart for plug-and-play installation.