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TS5 – the small form factor and medical probe

TS5 Fiber Optic Temperature Probe


Fiber Optic Temperature Sensor

The TS5 fiber optic temperature probe combines high chemical resistance with the thinest probe profile – especially suitable for catheter applications, e.g. monitoring body temperature within a medical research environment. The probe has a measurement range of -200°C to +200°C with an accuracy of +/- 0.2°C.

Especially well suited for catheter type applications, the extended tip (L1 dimension) is made from Ø0.60mm semi-flexible/semi-rigid polyimide tubing and be specified from 10mm to 600mm length. The very small profile is also ideal for the the most difficult to reach applications, such as RF semiconductor devices.

Starting at 850nm, GaAs becomes optically translucent for which the position of the band gap is temperature dependent. The FOTEMP signal conditioners contain a light source and a device for the spectral detection of the band gap.


Name of sensor TS5, The small form factor and medical probe
Temperature range – 200°C to + 200°C
Accuracy +/— 0.2°C
Thermal response Up to 19°C/s
Fiber Ø 200/220/240μm

Sensor length


2m and 6m are standard

Other lengths on customer request, max 20m.

Extended tip length


10mm-600mm, User specified

20mm and 50mm are standard

Connector Type ST
Signal conditioner Compatible with all FOTEMP series fiber optic thermometers


Ordering Information

TS5-YYMM-XX where
YY=L1 Extended Tip Length in mm, 10-130mm
XX=Overall Sensor Length in meters, max 20m
Standard sensors below in stock, customer specials 3-4 Weeks ARO
TS5-20MM-02 Standard TS5 Sensor, L1=20mm, Length=2m
TS5-20MM-06 Standard TS5 Sensor, L1=20mm, Length=6m
TS5-50MM-02 Standard TS5 Sensor, L1=50mm, Length=2m
TS5-50MM-06 Standard TS5 Sensor, L1=50mm, Length=6m
DIST-CXXX-XX          FO Extension Cables, Standard Lengths=3m, 5m, 10m
Special lengths up to 100m available upon request
FOTEMP4-P0-V-B Standard 4-Channel Bench Top Signal Conditioner, USB/RS232,
0-10V Analog Output, B-Calibration= -40C to +300C,
IN STOCK -Rent or Purchase
FOTEMP4-P0-V-C Standard 4-Channel Bench Top Signal Conditioner, USB/RS232,
0-10V Analog Output, C-Calibration= -200C to +300C (cryogenic to high temperature),
IN STOCK – Purchase Only


  • Smallest probe profile, Ø0.60mm tip
  • Temperature Range: -200°C to + 200°C
  • High Accuracy: +/- 0.2°C
  • Non-conductive
  • Immune to RFI, EMI, NMR and microwave radiation
  • Corrosion resistant
  • Stable and repeatable measurements
  • GaAs-based temperature sensor


  • Medical environments
  • Catheter instruments
  • Monitoring of body temperature
  • RF heating of semiconductor devices
  • For most difficult to reach areas


Call +1-805-389-6600 or email

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