Sewi KNX presence detector in white in front of a modern living room settingSewi KNX presence detector in white in front of a modern living room setting

Sewi KNX AQS/TH-D L-Pr: Precise sensor technology for your KNX projects

News of 06 March 2025

Smart sensors for light, climate and air quality

A modern KNX installation requires high-performance sensors that combine precision, flexibility and efficiency. The Sewi KNX AQS/TH-D L-Pr offers complete room monitoring with brightness, presence, temperature and air quality sensors – ideal for demanding smart building projects.

Whether for office buildings, hotels or commercial real estate – with its precise presence and motion detection and adaptive light and climate control, the Sewi KNX ensures optimal comfort and energy savings. The mixed value calculation makes it possible to combine internal and external sensor data, while individually configurable logic gates enable intelligent building control.

Find out more about this smart all-rounder here!

Sewi KNX in our Shop
Sewi KNX AQS/TH-D L-Pr

Your advantages

  • Optimal light control – constant light control & daylight utilisation for maximum efficiency.

  • Highly precise presence & motion detection – ideal for offices, hotels & smart buildings.

  • Comprehensive climate monitoring – CO2, temperature & humidity with mixed value calculation.

  • Perfect KNX integration – ideal for complex automation projects.

More about Sewi KNX AQS/TH-D L-Pr
Sewi KNX AQS/TH-D L-Pr mounted on white perforated ceilingSewi KNX AQS/TH-D L-Pr mounted on white perforated ceiling

All Elsner KNX presence detectors in our Online Shop

Sewi KNX
Sewi KNX TH L-Pr
Presence and Ambient Climate Sensor
€324.00
incl. 19% VAT, excl. shipping
Sewi KNX
Sewi KNX AQS/TH L-Pr light
CO2, Temperature, Humidity, Brightn., Presence
€422.00
incl. 19% VAT, excl. shipping
KNX T-L-Pr-UP Touch CH
KNX T-L-Pr-UP Touch CH
Presence, Brightness and Temperature Sensor
€296.00
incl. 19% VAT, excl. shipping
KNX T-L-Pr-UP Touch, pure white RAL 9010
KNX T-L-Pr-UP Touch, pure white RAL 9010
Presence, Brightness and Temperature Sensor
€296.00
incl. 19% VAT, excl. shipping
Intra-Sewi KNX
Intra-Sewi KNX TH-L-Pr
Built-in Presence, Brightness & Climate Sensor
€280.00
incl. 19% VAT, excl. shipping
Mini-Sewi KNX
Mini-Sewi KNX L-Pr and TH-L-Pr
Brightness and Presence Detectors
As low as €176.00
incl. 19% VAT, excl. shipping
Intra-Sewi KNX
Intra-Sewi KNX L-Pr
Built-in Presence Detector with Brightness Sensor
€233.00
incl. 19% VAT, excl. shipping
Präsenz-, Raumklima- und Luftqualitätssensoren Sewi KNX AQS/TH-D L-Pr in schwarz und weiß
Sewi KNX AQS/TH-D L-Pr
Presence, air quality and room climate sensor
€453.00
incl. 19% VAT, excl. shipping
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Sewi KNX AQS/TH-D L-Pr

Technical features

  • Brightness measurement and control
  • Measurement of CO2 concentration in the air, temperature, humidity and air pressure
  • PI controller for heating and cooling
  • 8 AND and 8 OR logic gates with 4 inputs each
  • and much more
More about Sewi KNX AQS/TH-D L-Pr
2 Sewi KNX AQS/TH-D L-Pr, one in white, one in black2 Sewi KNX AQS/TH-D L-Pr, one in white, one in black
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Legal guarantee

Harmonised EU legal guarantee notice

Minimum two-year legal guarantee protection for goods sold in the European Union.

Consumers can claim their rights under the legal guarantee of conformity, for example if goods:

  • do not match the description;
  • do not function as intended.

Sellers are liable for any lack of conformity which existed when the goods were delivered, and which becomes apparent within the legal guarantee period. Sellers in such a situation are required to offer:

  • free repair or free replacement;
  • in some cases, a price reduction or full reimbursement.

Some countries have a longer legal guarantee period. For second-hand goods, a shorter period may apply, but not less than one year.

What to do if you receive non-conforming goods:

  1. Contact the seller as soon as possible to report the issue;
  2. Provide proof of purchase, such as a receipt, invoice, or bank statement.

Sellers and producers may also offer commercial guarantees, which apply independently from the legal guarantee. For example, you may see this GARAN label representing a commercial guarantee of durability offered by the producer at no additional cost and covering the entire good.

For more information on your rights in a specific country, visit the page below or ask the seller. https://europa.eu/youreurope/guarantees

https://europa.eu/youreurope/guarantees