LX728-V1 Smoke Alarm Instruction
The photoelectric smoke detector is designed to sense smoke that comes into the detector chamber. It does
not sense gas, heat, or flame. This smoke detector is designed to give early warning of developing fires by
giving off the alarm sounds from its built-in alarm horn. It can provide precious time for you and your family to
escape before a fire spreads.
Specifications
Where to install smoke alarm
1.Install a smoke detector in the hallway outside every separate bedroom area, as shown in Figure 1.
2.Install a smoke detector on every floor of a multi-floor home or apartment, as shown in Figure2.
3.Install a smoke detector inside every bedroom.
4.Install smoke detectors at both ends of a bedroom hallway if the hallway is more than 40 feet (12 meters) long.
5.Install a smoke detector inside every room where one sleeps with the door partly or completely closed, since
smoke could be blocked by the closed door and a hallway alarm may not wake up the sleeper if the door is closed.
6.Install basement detectors at the bottom of the basement stairwell.
7.Install second-floor detectors at the top of the first-to-second floor stairwell.
8.Install additional detectors in your living room, dining room, family room, attic, utility and storage rooms.
9.Install smoke detectors as close to the center of the ceiling as possible. If this is not practical, put the detector on
the ceiling, no closer than 20 inches (50 cm) from any wall or corner, as shown in Figure 3.
10.If some of your rooms have sloped, peaked, or gabled ceilings, try to mount detectors 3 feet (0.9 meter)
measured horizontally from the highest point of the ceiling as shown in Figure 4.
Power source: DC9V
Static current: <10uA
Alarm current: <10mA
Low voltage alarm:7 V±0.5V
Alarm sonority:> 85 db (3m)
AC power: Power: 100-130V/AC
220-240V/AC
Power frequency:50/60Hz
Working temperature:-10°C~50°C
Figure 2
Fiure 1
smoke detector for minimum security
floor
garage
basement
kitchen
ground
bedroom
bedroom
bedroom
living room
family room
bedroom
kitchen
bedroom
bedroom
bedroom
smoke detector for minimum security
smoke detector for more security
Figure 4
Figure 3
0.9M(3ft)
horizontal distance from peak
dete
ctor
WALL
best location
acceptable location
50CM(20'')
MINIMUM
never here
CEILING
certer of ceiling
92.50mm
17
.0
0
15
.4
0
101.50mm
Ø
79.00mm
27
.0
0mm
Ø
101.50mm
4.77mm
mm
mm
