The DiTemp Harsh is a unique tool for the measurement of distributed temperature over several kilometers in harsh environment (from desert to arctic). It is a powerful diagnostic instrument for the identification and localization of potential problems. It allows the monitoring of local temperature at thousands locations by mean of a single optical fiber and in just one measurement. Its inherent high stability and self-referenced principle of operation, allows on-line or off-line long-term monitoring of large structures.

Datasheet: 

14.2013ENDS_DiTemp Harsh Reading Unit Raman OTDR.pdf