The RTTR cable monitoring system consists of a temperature measurement device, the Distributed Temperature Sensing (DTS), and our visualization and RTTR calculation software, a current interface for reading in the current data, an optical fiber for temperature measurement and. The RTTR cable monitoring system consists of a temperature measurement device, the Distributed Temperature Sensing (DTS), and our visualization and RTTR calculation software, a current interface for reading in the current data, an optical fiber for temperature measurement and. The RTTR cable monitoring system consists of a temperature measurement device, the Distributed Temperature Sensing (DTS), and our visualization and RTTR calculation software, a current interface for reading in the current data, an optical fiber for temperature measurement and network interfaces for. Distributed temperature sensing (DTS) measures temperature distribution over the length of an optical fiber cable using the fiber itself as the sensing element. Unlike traditional electrical temperature measurement (thermocouples & RTD), the length of the fiber optic cable is the temperature. The modern fibre-optic temperature measurement methods measure temperatures along a conventional fibre optic cable from telecommunications technology with lengths up to 60 km, providing linear profiles. A fibre optic cable can be integrated into a structure during the construction or during. The products and services, developed by GESO, are based on the distributed fiber optic temperature sensing technique (D istributed T emperature S ensing=DTS). These fiber optic systems precisely measure the temperature profile of an asset by interpreting the. Today we are capable of offering the most advanced technologies available on the market based on real performances, to monitor not only partial discharges, but also all key parameters, like temperature and noises generated in the surroundings of cables. DTS (Distribute Temperature Sensor) allows.