A user interface for a wireless device used to monitor multiple groups of faulted circuit indicators. A gate pattern is formed on a substrate, and an insulating layer is formed over the substrate including over the gate pattern. At least two pitch adjusters are attached to the string puller. The WSiN layer is continuously and uniformly deposited in the contact hole having high aspect ratio, and the tungsten layer in the nucleation stage can be continuously and uniformly deposited on the WSiN layer, thus completely filling the contact hole with a tungsten layer deposited by the CVD process. The device includes an inlet; an outlet connected to the inlet; a sprayer spraying a nebulized liquid into the device; and an airflow sensor electrically connected to the sprayer for activating the sprayer when an airflow passes through.