Cala KNX IL green indicator lights in front of a modern conference room with people seated insideCala KNX IL green indicator lights in front of a modern conference room with people seated inside

Cala KNX IL (CO2): New colour variant in deep black

News of 09 July 2026

Tried-and-tested KNX functions. New colour option.

When selecting switch components, it is not only the functionality that matters, but also the appearance. With the new Deep Black (RAL 9005) colour variant, Cala KNX IL and Cala KNX IL CO2 can now be seamlessly integrated into projects with dark switch ranges.

Cala KNX IL visualises status messages and warnings using a coloured LED indicator. Cala KNX IL CO2 extends these functions with an integrated CO2 sensor and automatic ventilation control. Both variants integrate seamlessly into standard 55 mm switch ranges or Swiss 60 mm installation systems, offering a wide range of options for visualising KNX system conditions.

Whether room occupancy, window status, air quality or technical status messages, Cala KNX IL and Cala KNX IL CO2 provide intuitive visualisation directly in the room. The new colour variant also offers additional design flexibility for high-quality KNX projects.

Discover the Cala series in our Online Shop
Cala KNX IL (CO2)

Typical applications

  • Residential buildings – Visualise window contacts, fault messages and alarm conditions
  • Offices & meeting rooms – Display room occupancy and air quality
  • Schools & nurseries – CO2 indicator light for demand-controlled ventilation
  • Event venues – Visualise a combined CO2 value from multiple sensors

Learn more about Cala KNX IL, its functions and applications in our short webinar.

Cala KNX IL, glowing green, wall-mountedCala KNX IL, glowing green, wall-mounted
Cala KNX IL (CO2)

Technical highlights

  • Four AND/OR logic gates
  • Two control variable comparators
  • Parametrisable LED indicator with red, amber and green signals plus flashing function
  • Also available as variants for Swiss 60 mm installation systems
  • Integrated CO2 PI controller and configurable CO2 threshold values (Cala KNX IL CO2)
Cala KNX IL with multi-coloured LED indicatorsCala KNX IL with multi-coloured LED indicators
Further technical articles

You might also be interested in:

People are sitting around a conference table with a Cala KNX IL CO2 unit mounted on the wall
Cala KNX IL CO2: Technical details and setting options

How to connect, configure and make the most of the KNX CO2 indicator.

More about Cala's technical details
Cala KNX T 101 mounted on a green wall in front of a modern living room
Heating control with KNX using the example of Cala KNX T 101

Smart heating made simple: Ideal for homes, hotels and commercial buildings.

More about Cala KNX T 101
A switch from the Cala range, wall-mounted in a modern bedroom
Cala series: Smart room controllers and push-buttons

Smart KNX room controllers and KNX push-buttons for intuitive control and seamless integration into modern building systems.

More about the Cala Series

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