DC 9V battery back up smoke alarm

Product Description with 9V battery backup smoke alarms •AC 240V with DC 9V battery backup •Photoelectric chamber of early detection from all   directions. •Loud>85db(A) alarm signal(3M) •Suitable for Ceiling or Wall Mounting •Operate as Single or Inter-connect up to 24 units •Surface mount base plate with large cable terminals •Red LED Alarm Status indication •Green LED AC Mains Power Indication •Low Battery signal •Insect Screen protects Sensing Chamber • N.W.: ≈255g • Dimensions: Ф120*46mm Product Parameter AC 240V Smoke Alarms Model No. LZ-1907 Standard AS3786：2014 Voltage AC 240V with DC 9V battery back up Standby current ≤10uA Alarm current ≤50mA Sensor type Photoelectric Tempera…