CentralAlert Audio Alarm Sensor Model CA-AX｜ Other Products

This sensor detects the alarm sounds of virtually all your audio smoke, gas, and fire alarms, even the new alarms with T3 or T4 type alarm sounds, and sends a wireless signal to trigger the CA-360 to alert you. Install it near your existing alarms for sound detection or connect it directly to your alarms for activation.
Product Features: 

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 CA-360 to alert you
Battery powered (batteries not included) with low battery indicator
Brand:Serene InnovationsSKU:6547Tags:Serene Innovations - CentralAlert, Signaling & Notification, Smoke & Carbon Monoxide