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Description: Capacitive humidity sensor
Operating temperature: -50...+150 °C
Humidity measuring range: 0...100% RH (max. dew point = +83 °C)
Response time humidity: T63: < 5 s (50% RH to 0% RH at +23 °C)
Humidity linearity error: < ±1.5% RH
Capacity: 150 pF + 50 pF (at 23 °C and 30% RH)
Sensitivity: 0,25 pF/% RH
Frequency range: 1kHz … 100kHz (recommended 10kHz)
Hysteresis: < ±1.5% RH
Dimensions: (LxWxH) 5 x 3.8 x 0.8 mm
Connection: Cu/Ag wire, 18 mm, AWG26, PTFE, insulated 8 mm
Signal form: AC voltage without DC component
Operating voltage: max. 12 Vpp AC
Loss factor: < 0.01 (at 23 °C, at 10kH, at 90% RH)
Weight: 0.005 kg

This capacitive humidity sensor impresses with high chemical resistance, a wide temperature range and stability at high humidity.

The high-performance polymer used is resistant to condensation and many chemical influences and guarantees excellent long-term stability. Thanks to these optimal performance data, the capacitive humidity sensor is suitable for demanding measurement applications.


Typical area of application

  • Building automation
  • Air conditioning
  • White goods
  • Medical technology
Title File name File Size File extension Date Download
Datasheet capacitive humidity sensor KFS140-D Datasheet_capacitive_humidity_sensor_KFS140-D 641kb pdf 2025-07-02 05:56
Datenblatt kapazitiver Feuchtesensor KFS140-D Datenblatt_kapazitiver_Feuchtesensor_KFS140-D 642kb pdf 2025-07-02 05:56
Description: Capacitive humidity sensor
Operating temperature: -50...+150 °C
Humidity measuring range: 0...100% RH (max. dew point = +83 °C)
Response time humidity: T63: < 5 s (50% RH to 0% RH at +23 °C)
Humidity linearity error: < ±1.5% RH
Capacity: 150 pF + 50 pF (at 23 °C and 30% RH)
Sensitivity: 0,25 pF/% RH
Frequency range: 1kHz … 100kHz (recommended 10kHz)
Hysteresis: < ±1.5% RH
Dimensions: (LxWxH) 5 x 3.8 x 0.8 mm
Connection: Cu/Ag wire, 18 mm, AWG26, PTFE, insulated 8 mm
Signal form: AC voltage without DC component
Operating voltage: max. 12 Vpp AC
Loss factor: < 0.01 (at 23 °C, at 10kH, at 90% RH)
Weight: 0.005 kg

This capacitive humidity sensor impresses with high chemical resistance, a wide temperature range and stability at high humidity.

The high-performance polymer used is resistant to condensation and many chemical influences and guarantees excellent long-term stability. Thanks to these optimal performance data, the capacitive humidity sensor is suitable for demanding measurement applications.


Typical area of application

  • Building automation
  • Air conditioning
  • White goods
  • Medical technology
Title File name File Size File extension Date Download
Datasheet capacitive humidity sensor KFS140-D Datasheet_capacitive_humidity_sensor_KFS140-D 641kb pdf 2025-07-02 05:56
Datenblatt kapazitiver Feuchtesensor KFS140-D Datenblatt_kapazitiver_Feuchtesensor_KFS140-D 642kb pdf 2025-07-02 05:56

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FAQ

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EXW B+B Thermo-Technik GmbH Donaueschingen Incoterms®2010


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Rechnung (Netto 30 Tage):

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Schweiz

Frequently asked questions & answers

We generally offer standard shipping via DPD. You can also pick up your order yourself or ship with your own tracking number. You can select the option you prefer during the ordering process.

You find more information about this topic on our rights of withdrawal page.

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Yes, at B+B we can manufacture customised items for you with a minimum order value of €500.00.

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Certifications

Thank to the latest research, development and manufacturing technologies, as well as DIN EN ISO 3001:2015 and DIN EN 61340-5-1 certifications, we produce our products in accordance with the highest quality standards.

Calibration service

The B+B calibration laboratory is accredited by the German Accreditation Body (DAkkS) in accordance with DIN EN ISO/IEC 17025:2018 for the thermodynamic measurement parameters of temperature and relative humidity.

Individual manufacturing

You tell us your application and we will supply you with the right product for measurement and monitoring. We place particular emphasis on close cooperation in order to guarantee optimal product development in live with your requirements.

Location

B+B Thermo-Technik GmbH is based in the town Donaueschingen south-west Germany. From here, B+B quality products are distributed worldwide.