This product has been discontinued.
Available in four different switch options, the Howler heavy duty site alarms are ideal for providing a manual fire alarm system to temporary applications such as construction sites and events/festivals. The Howler site alarms sound a loud audible warning when activated and require no wiring whatsoever.
HM3 - Push on/Key Off switch: HSHM3
HMCP - Call Point Switch: HSHMCP