How the system works
* The combination of sensors de pends on the package you p urchased.
DM271 Baby monitor
Receive alerts on your
parent unit when there’s
activity in your child’s
room – from an open door
or window to movement in
the crib.
Motion Sensor
Lets you know when
there are visitors,
intruders, or pets
moving around your
home.
Open/Closed Sensor
Apply this magnetic
Open/Closed Sensor to a
door, window, or medicine
cabinet to know if it is
open or closed.
4
Check and locate
Check the motion sensor
before use
Test the sensor signal
strength
NOTES
If No signal or Weak signal
message is displayed in sensor
setup mode, or if you do not
receive an alert when you open
the door, move the base closer to
the mounting location or move the
sensor closer to the base.
Use adhesive tape to hold the
sensor temporarily in place.
•
•
Use your parent unit to enter
the Sensor settings menu, and
then select the Check signal
menu. Follow the steps to test
the sensor’s signal strength, and
then exit the sensor setup mode.
Make sure there is a good signal
received when there is motion.
Refer to Sensor notifications
section in the User’s manual for
the alerts.
If your package includes
a Motion Sensor, please
read the following
section.
Motion Sensor
installation
1
Parts checklist
1 set for DM271-110
Motion Sensor
Screw for
mounting
brackets x 2
Anchor for
mounting
brackets x 2
Open the battery
compartment case
2
Power
The Motion Sensor detects motion
with one-minute cool off time.
Once motion is detected, the
sensor will only start to detect
motion again after one minute.
The Motion Sensor is more
sensitive in detecting motions
crossing the space in front of the
sensor than that moving towards
the sensor.
The Motion Sensor can detect
motion occurring at distances up
to 40 feet (12 meters) when it is
mounted at a height of 7.9 feet
(2.4 meters).
It is recommended to mount the
sensor at the height between
6.2 feet (1.9 meters) and 7.5 feet
(2.3 meters) for optimal detection
coverage.
For motion detection of babies
or pets:
If you use the Motion Sensor only
to detect the motion of babies or
pets, you can mount the sensor
at a lower position to shorten
the minimum distance before
reaching the detection area. It is
recommended to mount it at the
height 3.3 feet (1 meter) for optimal
detection of babies or pets.
Up to 34.4
feet
(10.5 meters)
Side view
Detection
area
78
o
Top view
87
o
Detection
area
1.3 feet
(0.4 meter)
10
o
Height: 6.9 feet (2.1 meters)
Height: 6.9 feet (2.1 meters)
Detection
area
78
o
87
o
Detection
area
0.7 feet
(0.2 meter)
10
o
Height: 3.3 feet (1 meter)
Up to 16.4
feet
(5 meters)
Height: 3.3 feet (1 meter)
Top view
Side view
Baby Monitor installation
1
Parts checklist
2
Connect
Parent unit
Test your baby monitor
3
Check and Locate
3
2
THIS SIDE UP
3
2
THIS SIDE UP
3
3
Battery compartment cover Battery
Parent unit adapter Baby unit Baby unit adapter
Positioning your baby monitor
Install the battery
243
4
3
4
214
3
243
4
3
214
3
243
214
3
214
3
243
CAUTION
Keep the baby unit out of the reach of the b aby. Never place
or mount the baby unit inside the baby ’s crib or playpen.
Do not expose the baby unit to extreme h eat or direct sunlight.
•
•
1 set for DM271/DM271-102/DM271-110
At least 1
mete
r
(3
fe
et
)
At least 1 meter (3 feet)
Press to turn on the
projector.
It projects some colorful
images to the environment.
Adjust the angle of the baby
unit so that the images are
clearly projected to the
ceiling or a wall.
At least 1 meter (3 feet)
Connect the baby monitor
3
Motion Detection
NOTE
The numerical values in the
illustrations are for concep tual
reference only. The actual angles
and distances may vary upon the
change in the mounted height of
the sensor.
•
Install Motion Sensor Battery
NOTES
Use only CR123A Lithium Battery.
When inserting Battery, ensur e
polarities are correct.
The Motion Sensor is already
pre-registered to the baby monitor.
For proper operation, use batter y
within the following temperatu re
range: 0°F (-18°C) and 120°F (49°C).
•
•
•
•
243
214
3
Unscrew.
243
214
3
Lithium battery
Double-sided
mounting tape
Screw for
back cover x 3
Anchor for
back cover x 3
Mounting bracket
on mounting base
with screw
Installation guide
DM271
DM271-102
DM271-110
Wireless Monitoring System
with Safe & Sound
®
Digital Audio Monitor
Go to
www.vtechphones.com
to register your product
for enhanced warranty
support and the latest
VTech product news.
Specifications are subjec t to change without noti ce.
© 2015 for VTech Communications, Inc.
All rights reserved. 12/15. DM271_IG _V2.0
Document order number: 96- 010888-020-100
4
Mount
5
Mount
NOTES
This sensor must be mounted vert ically on wall.
Do not mount the Motion Sensor in a ho rizontal
orientation, or flat on the ceilin g.
If you drill the holes into an objec t other than a
stud, insert the screw anchor s into the holes and
tap gently on the ends with a hamme r until the
screw anchors are flush with the wa ll or ceiling.
TIP
You can choose to mount the sensor with th e
mounting tape first. Remove the mo unting tape
and use screws later if you decide to mo unt it at
that location for long term.
•
•
•
Mount with screws
(Optional)
Insert screw
anchors if
necessary.
Mount on the wall - with fixed angle Mount on the wall - with rotate detection angle
6251847
3
4
4
3
Mount with screws
Mount on the wall - with fixed angle
243
214
3
6251847
3
4
4
3
243
214
3
This screw should only
be fully secured after
you adjusted the angle.
Unscrew
first.
(Optional)
Insert screw
anchors if
necessary.
6251847
3
443
243
214
3
62847
3
847
3
Tighten the screws
after you slided the
sensor over them.
Tighten
the screw.
Tighten
the screw.
Tighten
the screw.
> 1 cm
(0.4 inch)
> 1 cm
(0.4 inch)
> 1 cm
(0.4 inch)
1 cm
(0.4 inch)
Mount the magnet unit
c
c
cc
Without spacer With spacer (optional)
Mount the sensor unit
A
We recommend you mount the magnet unit on a
door, window, or medicine cabinet, and mount t he
sensor unit on its respective frame.
You can use the spacers provided if there is a
difference in level between the door an d the
frame. The spacer will help to align your sens or
to the correct height. You can also use a spacer
if the frame is too narrow or has some decorat ive
molding.
NOTES
You can mount the sensor unit with mounti ng tape first,
and then use screws later if you decid e to mount it at
that location for long term.
Make sure the mounting surface is c lean. A textured
surface or any imperfections to a smoot h surface can
keep the mounting tape from making a strong bo nd.
Align the magnet unit with senso r unit when mounting.
The distance between the sens or unit and magnet unit
must be less than 1 cm (0.4 inch).
•
•
•
•
With spacer (optional)
Without spacer
* The door frame is thicker than
the door.
* The door is
thicker than
the door frame.
BB
3
Check and locate
Check your Open/Closed
sensor before use
Test the sensor signal strength
After testing the sensor signal stren gth, mark the mounting locati on
on the door, window, or medicine cabinet and its r espective frame.
Then, remove the adhesive tape and proceed t o the mounting
process.
Use your parent unit to enter the Sensor set tings menu, and then
select the Check signal menu. Follow t he steps to test the sensor’s
signal strength, and then exit the sens or setup mode. Make sure
there is a good signal received when you op en the door as usual.
Make sure both baby unit and parent unit
are on. Then, separate the sensor unit
from the magnet unit.
The parent unit will emit an alert tone,
and announce “Open/Closed X* is open”.
The screen will display Open/Cl osed X
is open.
If your package includes an Open/Closed sensor,
please read the following section.
Open/Closed sensor installation
1
Parts checklist
2
Power on
NOTES
The batteries are pre-installed in
your Open/Closed sensor.
The Open/Closed sensor is
already
pre-registered to the baby monitor.
The batteries operate properly
under the temperature between
0°F (-18°C) and 130°F (55°C).
•
•
•
RE
M
OVE
BE
F
O
RE
US
E
Use adhesive tape to hold the sensor temporarily in place.
Mount the sensor to a higher position to avoid obstacles or blockages.
Depending on surroundings and obstructing factors, like walls or
cabinets, the sensor may not transmit to the baby unit properly.
•
•
NOTES
If No signal or Weak signal messag e is displayed in sensor set up mode,
or if you do not receive an alert when yo u open the door, move the baby unit
closer to the mounting locatio n or move the sensor closer to t he baby unit.
•
Sensor unit Magnet unit
Spacer for
sensor unit
(optional)
Double-sided
mounting tape C
Spacers for
magnet unit
(optional)
Large screw x 2
(for spacer of
sensor unit)
Small screw x 2
(for fixing sensor
unit’s back cover
on spacer)
Double-sided
mounting
tape A
1 set for DM251-102
Double-sided
mounting
tape B
NOTES
The door images in this installa tion guide are for conc eptual reference only.
•
*
X refers to the system-assigned n umber
of the sensor.
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