Outside air sensor BT11 PBMi 20-40 De Dietrich 770233100

The outside air sensor BT11 PBMi 20-40 is an external temperature sensor used by heating systems to adjust indoor climate based on outdoor conditions. By measuring ambient temperature, it enables weather-compensated control, improving energy efficiency and comfort. Compatible with PBMi series boilers and heat pumps, this sensor is essential for systems that rely on outdoor temperature data. Replace a faulty sensor to restore accurate readings and efficient operation.