The Gas Protect sensor monitors both gases in addition to the CO2. In the event of minor gas leakage or CO combustion, the CO2 generator will switch off and cause the alarm light to illuminate. This always ensures safety and prevents plant damage. Instead of using a single beam, as many other sensors do, the Dimlux CO2 Sensor is effectively two sensors in one thanks to its dual beam. This means that the measuring sensor is adjusted from time to time by the second sensor.