Press the central "TEST" button once. The unit will cycle through its alarm patterns and display current sensor readings. LCD Display:
Electrochemical CO sensor and infrared photoelectric smoke sensor. Power: 3 x 1.5V AA batteries (replaceable).
Replace the entire unit immediately if the "End of Life" signal occurs or if it fails a manual test. jkd-512com user manual
Approximately 10.3cm in diameter and 3.5cm in height. Installation Guide
Twist the unit counter-clockwise to remove the mounting bracket. Press the central "TEST" button once
Displays "0" or remains blank until gas is detected.
Backlit LCD screen showing CO levels (000–999 ppm) and smoke concentration. Power: 3 x 1
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
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.