Room air-quality sensors (VOC) or measuring transducers FSLQ-U

Room air-quality sensors (VOC) or measuring transducers AERASGARD® FSLQ-U

Item no. 1501-5120-1000-162
Product group: WG01

Low availability.

Usually ships in 3 to 5 days
253,07 €
301,15 € incl. VAT + shipping


Room air-quality sensors (VOC) or measuring transducers AERASGARD® FSLQ-U
Maintenance-free air-quality sensor AERASGARD® FSLQ with active output, automatic calibration, in the in-wall housing, for determining the air quality (0…100 % VOC). The measuring transducer converts the measured variables into a standard signal of 0 -10 V. The in-wall sensor is mounted in high-quality panel switch programmes, ideally of the brands Gira, Berker, Merten, Jung, Siemens or Busch-Jaeger (using in-wall adapters) either individually or in combination with light switches, socket outlets, etc.
The sensor is used in offices, hotels, convention centres, apartments, shops, etc. and is used for evaluating the indoor climate. This enables energy-saving room ventilation on an as-needed basis, thereby reducing operating costs and improving well-being.
The air quality is detected by a VOC sensor (mixed gas sensor for volatile organic substances). This determines the pollutant loading of the room air by contaminated gases such as cigarette smoke, body vapours, breathing air, solvent vapours, emissions, etc.

Technical details

Voltage supply
24 V AC/ DC (± 10 %)
Power consumption
< 4.8 W/ 24 V DC typical; < 6.8 VA/ 24 V AC typical; peak current 200 mA
Data points
Air quality (VOC)
Sensor, VOC
VOC sensor (metal oxide) with automatic calibration
(VOC = volatile organic compounds)
Measuring range, VOC
0...100 % Air quality
Service life
> 60 months (under normal load conditions),
depending on the type of loading and gas concentration
Measuring accuracy
typically ± 20 % of final value (referred to calibrating gas)
Warm up time
approx. 1 hour
Response time
< 60 s
0 - 10 V (0 V = clean air, 10 V = polluted air)
(low to elevated room air pollution load)
Measuring range
0...100 % air quality; with reference to calibration gas
Ambient temperature
storage –20...+ 50 °C
operation 0...+ 50 °C
clean air and
non-aggressive, non-combustible gases
Electrical connection
0.14 - 1.5 mm², using plug terminals
Housing dimensions
plastic, colour pure white glossy (similar to RAL 9010)
(other colours are possible on request with colour variants
depending on the respective switch programme)
in in-wall flush box Ø 55 mm
Permissible air humidity
< 95 % RH, non-precipitating air
Protection class
III (according to EN 60 730)
Protection type
IP 20 (according to EN 60 529)
Protection type housing
IP 20
CE conformity,
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU