AUD120C120_/AUD120C121_ is a dedicated socket for the tube unit model AUD15C100 for batch operation, and is designed for monitoring combustion by detecting ultraviolet rays from oil or gas burner flames.
AUD120C120_/AUD120C121_ is a dedicated socket for the tube unit model AUD15C100 for batch operation, and is designed for monitoring combustion by detecting ultraviolet rays from oil or gas burner flames. Tube unit model AUD15C1000 is not included with this product. Please purchase it in addition to this product.