FT Mini – Mini Thermometer

FT Mini – Mini Thermometer

Mini Thermometer

The thermometer FT-MINI with fiber optic sensors is ideal for the use in microwave, high frequency, high voltage and magnetic field or aggressive environments, where measurement with metal temperature sensors (RTC, TC, capillary,…) is not possible.


Optical Channels 1
Silica Fiber Core 200 um
Fiber Optic Connctors ST
Fiber Protection Jackets PTFE sheath, PTFE spiral wrap
Measuring Range -200 to +300 °C (user configuration)
Relative Accuracy* Up to =/- 0.2 K
Resolution 0.1 K
Measuring Time / Channel ** 250 ms
Operating Temperature -20 to +60 °C
Storage Temperature -20 to +70 °C
Light Source Ligetime 5 (+/-3) years
Humidity 95% RH non-condensing
Communication Ports 3.3 V TTL UART
Power Supply > 7 VDC (< 700mS0

* The “expanded uncertainty of measurement” is the Product of the reported standard deviation and the coverage factor k=2. It corresponds to a normal distribution to a coverage probability of approximately 95 %.
** Mean value. This value depends on the used sensor and its enviromental temperature.


  • Simple one channel device
  • 3.3V-TTL UART interface
  • Small footprint
  • Possible Measuring range – 200 °C to + 300 °C
  • Possible standard deviation* +/- 0.2 K