| 摘要 |
<p>In an alarm pull station (10) having a housing (11) for attachment to a support, a manually movable member (12) is comprising a magnet (14) attached thereto. A Hall effect switching device (17) is arranged and is providing an output signal in response to movement of the magnet (14). Said output signal can be used to provide a local alarm indication and/or a remote signal to a fire and/or police station. </p> |
