STS-04 Surface high-temperature sensor




Standard WL configuration


Cleaning and Mating Manual

Ordering codes

Calibration sheet

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  • STS-04 has high temperature measuring range up to 250°C.
  • STS-04 has small dimensions.


  • Surface temperature measurement
  • Chemical and oil & gas applications
Performance properties
Temperature range1)
-50°C up to +250°C
Temperature accuracy
1% FS4)

Temperature accuracy (typical)2)
0.8% FS4)

Temperature precision
±0,30% FS4)

Temperature precision (typical)3)
±0,20% FS4)
Temperature resolution 0,1°C
Ingress Protection rating IP 65
Physical properties
Housing material
Stainless steel SS316L and copper
Dimensions (without cable)5) Ø34mm x 9.5mm
Weight (without cable) 100g
Cable type 3mm Stainless steel tubing / 3mm Dyneema tubing
Cable length6) 2mtr
Cable Bend Radius (dynamic) 30mm
Cable Bend Radius (static) 15mm
Connector type7) FC/APC
Mounting method Direct surface mounting
Packaging Cardboard box with dimensions: 370x290x45mm
Quality Statement STS-04 sensor is compliant with IEC 61757:2018
All sensors are 100% tested and calibrated at SYLEX.
Sensor is manufactured according to ISO 9001:2008 and ISO 14001:2004


  • 1) Temperature resistance up to 300°C. Calibration range to be agreed with client based on the project requirements.
  • 2) Accuracy is established for each individual sensor under laboratory conditions and it includes hysteresis, non-linearity, and repeatability of the sensor.
  • 3) Precision is established on a batch basis and it includes hysteresis, non-linearity, repeatability and reproducibility of the sensor.
  • 4) FS: full scale range
  • 5) For further dimensions details see the product drawing.
  • 6) Cable length is extendable on request.
  • 7) Other connector types available on request.