Determine the fiber optic model and specifications according to system requirements, inspect the appearance of the fiber optic, and verify the technical indicators on the certificate of conformity; Store temperature sensing optical fibers in an upright cable tray to avoid fiber. Determine the fiber optic model and specifications according to system requirements, inspect the appearance of the fiber optic, and verify the technical indicators on the certificate of conformity; Store temperature sensing optical fibers in an upright cable tray to avoid fiber. Distributed fiber optic sensing (DFOS) techniques such as Distributed Temperature Sensing (DTS), Distributed Acoustic Sensing (DAS) and Distributed Strain Sensing (DSS) are powerful tools for monitoring of long, linear assets. Consequently, these approaches fit perfectly with specific requirements. However, neither the presence nor absence of such identification affects the legal status of any trademark. FISO thanks Transmag Energie for transformer's pictures. The FISO Fiber Optic monitors are designed to monitor fiber optic Hot Spot temperature sensors installed inside high voltage power. Distributed Temperature Sensing (DTS) systems provide temperature information for accurate thermal monitoring, fire detection, and condition assessment by utilizing standard fiber optic cables. These fiber optic systems precisely measure the temperature profile of an asset by interpreting the. ributed temperature sensors (DTS) can simultaneously, continuously and reliably monitor all temperatures along optic fiber cables that are freely installed over a required area.