Feuchtigkeits-/Flüssigkeitsanzeige D.12 3940 De Dietrich 7778555

The Indicator humidity/liquid D.12 3940 is a monitoring device used to detect moisture or liquid presence in heating systems. This component is vital for preventing damage caused by leaks or condensation. As part of boiler maintenance and repair parts, it helps maintain safe and efficient operation of gas burner parts and related equipment.