The PaXini PX3Q is described as the world’s first intelligent Hall-effect joint torque sensor with proprietary 3-axis torque sensing that goes beyond traditional single-axis Mz limits to enable synchronous 3D torque sensing, preventing joint bending overload. It achieves 0.1 percent full-scale repeatability and resolution with 0.5 percent overall accuracy. An integrated self-diagnostic system continuously tracks device status, issues proactive alerts, and prevents failures. Rated IP64 (customizable to IP67/IP68) with -10 to 80 degrees C operating range, it is calibration-free for long-term operation with minimal wiring and plug-and-play design supporting RS485, CAN, CANFD, EtherCAT, and USB. Targets research and industrial robotics for embodied AI torque sensing.