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Description: Humidity controller
Version: For controlling an air dryer
Setting time: approx. 15 min
Operating temperature: +10...+40 °C
Control range humidity: 10...80% RH without condensation
Switching capacity NO contact: 230 V AC/ 5 A
Switching cycles: > 6000 at maximum load
Hysteresis: 5% RH (3...8% RH)
Outer diameter: Ø 6.32 mm
Dimensions: (LxWxH) 85 x 45 x 25 mm
Ambient conditions: 10...90% RH, without condensation
Weight: 0.118 kg

The humidity controller TW2001-A is an electromechanical hygrostat for relative air humidity. Because of the closing switching contact (NO) it is most suitable for dryers and dehumidifiers.

The physical measuring principle of this humidity controller is based on the characteristics of the hygroscopic polyamide tape which is tensioned by a spring.

The water content in this plastic tape is in balance with the relative humidity (% RH) of the surrounding atmosphere and the length of the tape changes reversibly depending on the actual air humidity (% RH) value in the air.

Adjusting the switching point is by simply turning the knob and may be directly used for controlling electric loads.

Unlike with electronic devices the hygrostat requires no power supply.


Typical areas of application

  • Air dryers, Air dehumidifiers, air conditioning technology, climatic systems, ventilation systems
  • Building automation
  • Agricultural und horticultural facilities
  • Greenhouses
  • Spare parts for domestic appliances
Title File name File Size File extension Date Download
Bedienungsanleitung Feuchteschalter TW2001 Bedienungsanleitung_Feuchteschalter_TW2001 882kb pdf 2025-07-02 10:30
Operation manual humidity switch TW2001 Operation_manual_humidity_switch_TW2001 895kb pdf 2025-07-02 10:30
Description: Humidity controller
Version: For controlling an air dryer
Setting time: approx. 15 min
Operating temperature: +10...+40 °C
Control range humidity: 10...80% RH without condensation
Switching capacity NO contact: 230 V AC/ 5 A
Switching cycles: > 6000 at maximum load
Hysteresis: 5% RH (3...8% RH)
Outer diameter: Ø 6.32 mm
Dimensions: (LxWxH) 85 x 45 x 25 mm
Ambient conditions: 10...90% RH, without condensation
Weight: 0.118 kg

The humidity controller TW2001-A is an electromechanical hygrostat for relative air humidity. Because of the closing switching contact (NO) it is most suitable for dryers and dehumidifiers.

The physical measuring principle of this humidity controller is based on the characteristics of the hygroscopic polyamide tape which is tensioned by a spring.

The water content in this plastic tape is in balance with the relative humidity (% RH) of the surrounding atmosphere and the length of the tape changes reversibly depending on the actual air humidity (% RH) value in the air.

Adjusting the switching point is by simply turning the knob and may be directly used for controlling electric loads.

Unlike with electronic devices the hygrostat requires no power supply.


Typical areas of application

  • Air dryers, Air dehumidifiers, air conditioning technology, climatic systems, ventilation systems
  • Building automation
  • Agricultural und horticultural facilities
  • Greenhouses
  • Spare parts for domestic appliances
Title File name File Size File extension Date Download
Bedienungsanleitung Feuchteschalter TW2001 Bedienungsanleitung_Feuchteschalter_TW2001 882kb pdf 2025-07-02 10:30
Operation manual humidity switch TW2001 Operation_manual_humidity_switch_TW2001 895kb pdf 2025-07-02 10:30

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FAQ

Der Versand unserer Produkte erfolgt per DPD gemäß ICC-Incoterms®2010: 

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


Zahlungsmöglichkeiten:


Wir akzeptieren die folgenden Zahlungsarten:


Kreditkarte (Visa und MasterCard):
Weltweit


PayPal:
Weltweit

Vorauszahlung (Banküberweisung):
Weltweit

Bitte beachten Sie: Bei Zahlung per Vorkasse erfolgt die Lieferung nach Zahlungseingang.

Sofortüberweisung:

Germany and Austria


Rechnung (Netto 30 Tage):

Deutsche Firmenkunden, 

Schweiz

Feuchtemesstechnik von B+B

B+B Thermo-Technik bietet Ihnen die komplette Produktpalette für die Feuchtemesstechnik.

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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.

You can pay with PayPal, credit card (VISA and MaserCard), payment in advance, Sofortüberweisung (direct banking) and in some cases invoice. You can find more information on the page shipping and payment.

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.