Electronic portable and transportable apparatus designed to detect and measure carbon dioxide and/or carbon monoxide in indoor ambient air - Requirements and test methods; German version EN 50543:2011 + AC:2011
设计用于检测和测量室内环境空气中二氧化碳和/或一氧化碳的便携式电子设备.要求和试验方法;德文版EN 50543:2011+AC:2011