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TS2p – the Absolute Smallest Sensor

TS2 Fiber Optic Temperature Probe


Fiber Optic Temperature Sensor

The TS2p fiber optic temperature probe was designed for fast measurements requiring direct contact to the heated surface. With a 0.3mmx0.3mm exposed GaAs chip, it is ideal for measuring the surface temperature of the smallest areas such (i.e semiconductor chip) or very shallow vial depths (liquid, powder, gel or slurry). The probe offers complete immunity to RFI, EMI, NMR and microwave radiation.

The TS probe consists of a PTFE coated glass fiber and a bare GaAs crystal mounted on the exposed fiber tip. The sensor is entirely passive and non-metallic. The sensor is especially suitable for high temperature ranges (-200°C to +300°C). The sensor cable can be up to several meters and the overall link can be several kilometers long without influencing the accuracy of the measurement result.

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 TS2p, The absolute smallest temperature probe
Temperature range – 200°C to + 300°C
Accuracy +/- 0.2°C
Thermal response Up to 20°C/s
Fiber Ø 200/220/240μm
Sensor length

2m standard

Other lengths available upon request, maximum length is 20m

Optical Connector

ST standard

Other connectors types available

Signal conditioner Compatible with all FOTEMP series fiber optic thermometers.

Specifications subject to change without notice

Ordering Information

TS2P-XX where XX=sensor length in meters, max 20m
Standard sensors and products below available in stock
TS2P-02 TS2p small form factor probe, Length=2m, STOCK
DIST-CXXX-XX          FO Extension Cables, Standard Lengths=3m, 5m, 10m
Special lengths up to 100m available upon request
FOTEMP4-P0-V-B 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 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 form factor probe with bare GaAs chip mounted on end
  • Temperature Range: —200°C to +300°C
  • High Accuracy: +/— 0.2°C
  • Completely non-conductive
  • Immune to RFI, EMI, NMR and microwave radiation
  • Resistance to extreme temperatures
  • Stable and repeatable measurement
  • GaAs-based temperature sensor
  • Distances up to 2000 meters


  • Small surface areas such as semiconductor chips and devices
  • Very small size or small volume samples – powder, liquid or gel
  • General purpose


Call +1-805-389-6600 or email

Credit Card Orders Accepted

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