Mount it next to your audio alarms for alarm sound detection. It is the only sensor that will respond to all alarm sounds, including those alarms with T3 or T4 type sounds
It can also be hardwired to your audio alarms that comes with connecting terminals for direct activation
It sends a wireless signal to activate the CA360 to alert you
Battery powered (batteries not included) with low battery indicator
Advanced Technology: 2.4 Ghz Smart-Code
Operating range: Up to 200ft, open space - actual distance varies according to house construction