Sensors And Sensing Systems

HS-01 Humidity sensor

Type: Humidity sensor

Application: Relative Humidity and temperature measurement in one body

Installation method: Clamping to an object

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  • HS-01 is an FBG-based relative humidity sensor usable in various environments.
  • HS-01 offers to measure temperature and relative humidity changes within one body.
  • The small dimensions of the body allow the sensor to be inserted in narrowed spaces.
  • Inbuilt particle filter made from PTFE for preventing particle and water droplet ingress.
  • Integrated temperature sensor for temperature compensation.
  • Can be manufactured completely without any metal.
  • Relative Humidity and temperature measurement in one body.
  • Combined with the right choice of housing material the sensor is suitable for harsh environments.

Product Specification

Performance properties
Relative Humidity range 1)
Accuracy (guaranteed) 2) <3% FS4)
Accuracy (typical) 2)
<1.5% FS4)
Precision (guaranteed) 3) <1.25% FS4)
Precision (typical) 3) <0.75% FS4)
Temperature sensitivity 10-11pm/°C
Relative Humidity Sensitivity 5) ~3pm/rH%
Operating Temperature range 20°C to +60°C
Ingress Protection rating IP 42
Physical properties
Housing material
Other housing materials 6)
PTFE, 1.4404. 1.4301
Dimensions (without cable) 7) Ø6mm x 80mm
Weight (without cable) < 10g
Cable type 3mm Dyneema reinforced cable, 900µm tubing
Cable length 8) 1m
Cable Bend Radius (dynamic) 40mm (for 3mm cable)
Cable Bend Radius (static) 30mm (for 3mm cable)
Connector type 9) FC/APC
Mounting method Clamping to an object
Packaging Cardboard box with dimensions: 370x290x45mm
Quality Statement HS-01 sensor is compliant with IEC 61757:2018 and IEC 61757-2-1:2021. All sensors are 100% tested and calibrated at SYLEX. Sensor is manufactured according to ISO 9001:2008 and ISO 14001:2004


  • 1) Calibrated in µm on demand
  • 2) A ccuracy 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) The relative humidity sensitivity is a combination of temperature and humidity impacts
  • 6) The housing material can be utilized for different applications
  • 7) For further dimensions details see the product drawing
  • 8) Cable length is extendable on request
  • 9) Other connector types available on request

Related products

WCP-01 is a IP67 watertight connector protection for FC/APC connectors

LCP-03 is an optional product modification for extending sensors cable lengths.

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