The airflow switch comes complete with two nozzles and a length of tube. The airflow switch can be used as a filter dirty monitor, airflow fail or airflow proving switch.
Airflow Switch
![Airflow Switch](https://www.sarumelectronics.co.uk/wp-content/uploads/2016/01/air-flow-switch.jpg)
The airflow switch comes complete with two nozzles and a length of tube. The airflow switch can be used as a filter dirty monitor, airflow fail or airflow proving switch.