The T820 is a Single-Mode (SM) Fiber based Fiber Bragg Grating (FBG) Packaged Temperature Sensor for use in environments from -50°C to +250°C.

Available in a wide range of optical specifications. Packaged to eliminate influences from the ambient environment. Ready for direct mounting steel and coper construction exhibiting excellent wavelength to temperature linearity. Calibration service available upon request. The full-scale (FS) accuracy and precision specifications take into account any hysteresis, non-linearities, and the repeatability of the sensor. The T820 FBG handling and installation is fast, easy and intuitive. Delivers the advantages inherent to FBG based sensors. Immune to EMI.

T820 series Temperature Sensors are fabricated using licensed and proprietary state-of-the-art laser manufacturing technologies and thermal designs. The sensor packaging described herein represents the most popular configuration and can be customized. The precision made FBG structure written into the fibers’ core for producing the T820 yields a simple transducer configuration of high resolution, linearity, and measurement repeatability. The T820 optical sensor core is protected by a steel and copper shell in a construction that balances cost, performance, and reliability for creating an attractive commercial solution. Available as single point sensor and can be multiplexed in star architecture. Well suited for projects that include the need to monitor temperature at key discrete locations, or for measuring temperatures distributed at many points. The T820 can be provided in star architecture arrays of various lengths with a flexible number of sensors. The T820 sensor construction focuses on demanding projects that require both low cost per sensing point and stable operation over the long-term.

Key Features

  • Temperature linearity.
  • High SLSR and customer specified BW for clear signal processing.
  • Rugged housing for harsh environments.
  • Low cost and field proven.




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