SCJGY-S-05 DSS Sensing Cable are protected by layers of multiple steel strands, and can be used with distributed Brillouin fiber optic sensing demodulation devices to measure the strain distribution along the fiber optic cable. The addition of steel strands greatly enhances the mechanical strength of optical cables and can withstand various harsh working conditions, including impacts during concrete pouring. It is widely applicable for monitoring the strain distribution of civil engineering structures.