Drill holes 5.5cm apart for the wall plugs and secure the bracket with screws. Clip the alarm back into the bracket with a clockwise twist. Operation & Testing
The screen will show a battery icon or "Lb," accompanied by a periodic chirp. jkd-512com user manual
Insert three AA batteries into the rear compartment, observing correct polarity. The device should beep once to indicate it is powered on. Placement: Drill holes 5
Install at least 10 feet (3 meters) away from fuel-burning appliances to avoid nuisance alarms. Ceiling: Mount at least 4 inches (10cm) from side walls. jkd-512com user manual