The Security Siren is a simple solution to keep your home or other location safe and secure. This device can be used to send audio notifications when your house has been broken into or to chime when a monitored door or window is opened. This easy to install Security siren can create 4* independent tones for different alerts. It can be plugged to any AC outlet and screwed into faceplate for solid installation. *Please note that the 4 tones feature require Z-Wave Multi-Channel Command class support, make sure your Hub supports Multi-Channel device class, otherwise the sire will only operate as Siren or as Chime.