Tension load cells and instrumented shackles are sensors designed for direct measurement of tensile forces in cables, tie rods, and containment systems, enabling continuous monitoring of stresses acting on structural elements. Made of high-strength stainless steel, the sensor is installed directly along the load path, allowing highly accurate measurement of tension in structural elements without altering their mechanical behavior. The device is widely used for monitoring tension in steel cables of rockfall protection barriers, wire mesh systems, and ground stabilization works, enabling real-time verification of structural effectiveness and load evolution over time. Thanks to strain gauge technology and high-quality construction, the load cell ensures high accuracy, long-term stability, and reliable performance even in harsh environmental conditions.