Institute of European Standards and Quality 
Reference details
- Reference
- EN 50543:2011/AC:2011
- Title
- Electronic portable and transportable apparatus designed to detect and measure carbon dioxide and/or carbon monoxide in indoor ambient air - Requirements and test methods
- Organisation
- CENELEC
- Publisher status in source
- PublishedThis is the status recorded in the source, not a statement that this is the latest edition.
- Source access
- 19 October 2026
Research and application
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Questions for the evidence file
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- Performance assessment
- Factory production control
- Declaration and installation scope
- Use and load assumptions
- Installation configuration
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