DHI-HY-1301 Addressable Smoke Detector is a mated product of the Addressable Fire Alarm Control Panel. Integrated with non-polarity two wire and smoke sensor, this detector analyzes ambient smoke concentration by intelligent algorithm to trigger alarms. When the concentration has reached the alarm threshold, the Addressable Fire Alarm Control Panel will confirm a fire alarm according to the received message sent from the detector, and the detector indicator will light simultaneously to indicate alarm.