Device for monitoring toxic carbon dioxide concentration in a vehicle air-conditioning unit comprises a gas sensor with a detecting element, and an evaluating electronic unit

摘要

The device (4) for monitoring toxic carbon dioxide concentrations in a vehicle (12) comprises a gas sensor (3) with a detecting element, and an evaluating electronic unit (11). Preferred Features: A fresh air supply (7) is automatically activated by an actuator (8) when the carbon dioxide concentration exceeds a prescribed value on the gas sensor. The maximum power of the fan (13) is automatically activated when the carbon dioxide concentration exceeds a prescribed value on the sensor. The limiting value is 1-3 vol.% carbon dioxide.