Room humidity and temperature sensor or measuring transducer FSFM/FSFTM
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temperature Luftfeuchtigkeit

Room humidity and temperature sensor or measuring transducer HYGRASGARD® FSFM/FSFTM

Product group: WG02

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246,67 €
293,54 € incl. VAT + shipping


Room humidity and temperature sensor or measuring transducer HYGRASGARD® FSFM/FSFTM
The HYGRASGARD® FSFM / FSFTM room humidity transmitter with in-wall housing is used for measuring the relative humidity and temperature of the air. It converts the measured values into a standard signal of 0-10 V.

A digital, long-term stable sensor is used for humidity and temperature measurement. Relative humidity [% r.H.] is the quotient of water vapour partial pressure divided by the saturation vapour pressure at the respective gas temperature.

The in-wall measuring transducer is mounted either individually or in combination with light switches, socket outlets, etc. in high-quality panel switch brand programmes, such as preferably from Gira, Berker, Merten, Jung, Siemens or Busch-Jaeger (with in-wall adapters).
It is used in non-aggressive, dust-free environments, in refrigeration, air conditioning and cleanroom engineering, and in interior spaces, such as living rooms, offices, hotels, etc.

Technical details

Voltage supply
24 V AC/ DC (± 10 %)
Power consumption
< 1.1 VA/ 24 V DC ; < 2.2 VA/ 24 V AC
Measuring range, humidity
0...100 % RH
Operating range, humidity
0...95 % RH (without dew formation)
Deviation of humidity
typically ± 3.0 % (20...80 % r. H.) at +25 °C, otherwise ± 5.0 %
Output, humidity
0 - 10 V
Ambient temperature
storage –35...+85 °C;
operation 0...+50 °C
clean air and
non-aggressive, non-combustible gases
Electrical connection
0.14 - 1.5 mm², using plug terminals
plastic, colour pure white glossy (similar to RAL 9010)
(other colours are possible on request with colour variants
depending on the respective switch programme)
on in-wall flush box, Ø = 55 mm
Long-term stability
± 1 % per year
Permissible air humidity
max. 90 % RH, non-precipitating air
Protection class
III (according to EN 60 730)
Protection type
IP 20 (according to EN 60 529)
CE conformity,
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU
GIRA System 55 Standard
(other switch programmes, manufacturers, colours
and prices upon request