• Home
  • |   Follow us on
  • For regular industry updates, follow LIOS on Twitter
  • Join LIOS on Facebook - Distributed Temperature Sensing
  • Follow LIOS Technology - Linear Optical Sensors on LinkedIn
  • Subscribe to LIOS RSS feed


The WELL.DONE DTS product series was carefully designed and thoroughly tested targeting reliable performance and smooth operation in industrial environments. Excellent Mean-time-between-failures (MTBF) of more than 30 years was reached based on the latest statistical field analysis of the DTS product.

Technical Performance and Features:

  • Highly reliable industrial design with key components approved by the telecom industry (tested according to Telecordia standard GR-468, with medium lifetime >25 years)
  • Signal processing based on patented Raman OFDR-Technology (Optical Frequency Domain Reflectometry)
  • Up to 16 internal fibre optic channels
  • Temperature resolution better than 0.06 °C (1 meter sampling interval)
  • Laser product class 1M according to DIN EN 60825-1: 2007
  • Maintenance free and simplified outdoor installation capability through higher allowed operating temperature range
  • Fan-free DTS unit design with passive cooling; no moving parts
  • Superior environmental stability over full operating temperature range
  • Easy commissioning and self-diagnostics
  • Double ended calibration performed by DTS unit
  • Remote configuration and operation via TCP/IP
  • Internal storage 2 to 16 GB flash memory
  • Impressive track record with more than 4500 permanent units installed worldwide

Proven Quality Standards:

  • Fulfills Telcordia GR-468 quality standard
  • VdS (the German asset insurers association)
  • ISO 9001 and ISO 14001
  • CE (Electromagnetic Compliance, Europe)
  • TÜV Rheinland


WELL.DONE Downhole Monitoring Information

WELL.DONE - Distributed Temperature Monitoring  of Upstream Applications in the Oil & Gas Industry

LIOS  WELL.DONE is the most reliable DTS system on the market used for temperature sensing and logging applications in complex as well as simple wells.


» Technology behind Distributed Temperature Sensing