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Description: Dew sensor
Version: Pre-assembled on an aliminium plate
Operating temperature: 0...+60 °C
Humidity measuring range: 0...100% RH
Dimensions: (LxWxH) sensor: 7 x 5 x 0.6 mm; aluminium plates: 20 x 12 mm
Connection: 30 mm, PVC insulated stranded wire, 0.14 mm²
max. evaluation voltage: < 0.8 V AC/DC
Nominal resistance: at 80% RH: < 10 kΩ, at 94% RH: < 100 kΩ, at 98% RH: > 200 kΩ
Weight: 0.0068 kg

This humidity sensor SHS-A4L is a resistive dew sensor with miniaturized dimensions for detecting the beginning of condensation. The sensor is pre-mounted on an aluminium plate for an easy installation.

Unwanted dew formation or adverse effects of condensation on cooling systems, pipes and technical devices can cause extensive damage, should you not react in time. It is especially for this quickly recognition of considerable risk of condensation, or already existing condense water that this special SHS series of resisitve dew sensors has been developed. The offered version here comes premounted on an aluminum plate, which makes the installation on planar surface very easy.

At high values of the relative humidity(>80%RH) where condensation risk becomes imminent, the sensitivity of the electrical resistance against changes of the humidity increases dramatically. This behavior of the characteristic curve (R vs. %RH) allows the setting of exactly defined switching points close to the dew point without needs of adjustment to the circuit.


Typical areas of application

  • Control cabinets
  • Cooling ceilings
  • Shop display windows
  • Humidor devices
  • Submersible pumps and other objects, which have to be protected against dew formation
Title File name File Size File extension Date Download
Datasheet resistive humidity sensor 0381 0004-03 Datasheet_resistive_humidity_sensor_SHS_A4L_0381_0004-03 1026kb pdf 2025-07-02 05:36
Datenblatt resistiver Betauungssensor 0381 0004-03 Datenblatt_resistiver_Betauungssensor_SHS_A4L_0381_0004-03 1035kb pdf 2025-07-02 05:36
Description: Dew sensor
Version: Pre-assembled on an aliminium plate
Operating temperature: 0...+60 °C
Humidity measuring range: 0...100% RH
Dimensions: (LxWxH) sensor: 7 x 5 x 0.6 mm; aluminium plates: 20 x 12 mm
Connection: 30 mm, PVC insulated stranded wire, 0.14 mm²
max. evaluation voltage: < 0.8 V AC/DC
Nominal resistance: at 80% RH: < 10 kΩ, at 94% RH: < 100 kΩ, at 98% RH: > 200 kΩ
Weight: 0.0068 kg

This humidity sensor SHS-A4L is a resistive dew sensor with miniaturized dimensions for detecting the beginning of condensation. The sensor is pre-mounted on an aluminium plate for an easy installation.

Unwanted dew formation or adverse effects of condensation on cooling systems, pipes and technical devices can cause extensive damage, should you not react in time. It is especially for this quickly recognition of considerable risk of condensation, or already existing condense water that this special SHS series of resisitve dew sensors has been developed. The offered version here comes premounted on an aluminum plate, which makes the installation on planar surface very easy.

At high values of the relative humidity(>80%RH) where condensation risk becomes imminent, the sensitivity of the electrical resistance against changes of the humidity increases dramatically. This behavior of the characteristic curve (R vs. %RH) allows the setting of exactly defined switching points close to the dew point without needs of adjustment to the circuit.


Typical areas of application

  • Control cabinets
  • Cooling ceilings
  • Shop display windows
  • Humidor devices
  • Submersible pumps and other objects, which have to be protected against dew formation
Title File name File Size File extension Date Download
Datasheet resistive humidity sensor 0381 0004-03 Datasheet_resistive_humidity_sensor_SHS_A4L_0381_0004-03 1026kb pdf 2025-07-02 05:36
Datenblatt resistiver Betauungssensor 0381 0004-03 Datenblatt_resistiver_Betauungssensor_SHS_A4L_0381_0004-03 1035kb pdf 2025-07-02 05:36

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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.

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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.