
Getting Started Guide
Cat. No. D2MSD
DI-000-D2MSD-02A
MOTION SENSING DIMMER
ND
2
GEN
Easy Wi-Fi lighting
control for the
whole home
See the complete line of My LevitonTM app compatible
dimmers, switches, plug-ins, and controllers at:
leviton.com/decorasmart
Welcome
Leviton’s Decora Smart Wi-Fi 2nd Gen Motion Sensing
Dimmer makes it easy and convenient to control
lighting in your home automatically, with ON/OFF,
Dim/Bright control, and built-in motion and ambient
light detection.
To save energy, the dimmer
can be set to turn lights on
when motion is detected, and
to turn lights off when the
room is unoccupied. You can
also have the lights come on
at a lower level at night or
utilize the guidelight feature
to illuminate your way in the
dark. You can even use the
Motion Dimmer to control
multiple Decora Smart devices
in a room together, based on
occupancy, with the
My Leviton app.
Control lighting how you want with built-in sensing.
Use your voice with Amazon Alexa, Google Assistant,
or Apple Siri, or use the My Leviton app, even when
you are away from home.
We are here to help
ONLINE
decorasmartsupport.leviton.com
EMAIL
dssupport@leviton.com
CHAT
www.leviton.com/support
CALL
1-8 00- 824 -30 05 ( USA )
1-800-405-5320 (Canada)
Your Motion Dimmer
works with:
• Dimmable LED, dimmable CFL,
incandescent, and MLV lighting.
• For ON/OFF control of non-dimmable
bulbs, such as fluorescent loads, select
“Non-dimmable” bulb type in the My
Leviton app, under device settings.
•
Do not use your dimmer with electronic
low-voltage or motor loads.
• Not for use with aluminum wire.
• Installation in metal wall boxes or
with metal wall plates may result in
poor RF performance.
• This device responds to temperature changes;
do not mount directly above a heat source or in a
location where hot or cold drafts will blow directly
on the sensor.
• For indoor use only.
•
For compatible LED bulbs, go to: leviton.com/LED
RATINGS
General Use 120VAC, 60Hz
LED / CFL
Incandescent 450W
MLV 450VA
Operating Temperature 0°C - 40°C (32°F - 104°F)
Operating Humidity 10% - 90% non-condensing
Storage Temperature Range -10°C – 85°C
NETWORK
Wi-Fi
Security
Bluetooth v5.0
MY LEVITON APP
iOS version 12.0 or later
oid version 8.0 or later
Andr
300W
802.11 b/g/n netw
2.4GHz only
WPA, WPA2, or WPA3 security,
or open
orks -
At a glance
PIR Motion Sensor
• Detects motion to determine
occupancy status.
• Optional Red LED feedback
to indicate motion is
detected (configurable in
the My Lev iton app).
Status LED
• Provides
connectivity and
device status
feedback.
• Illuminates when
the lights are OFF
so you can find the
dimmer in the dark
(configurable in the
My Leviton app).
Brightness
indicator lights
•
Displays light level
when adjusting
brightness.
ON / OFF Button
• Press to toggle the lights
ON or OFF
OFF means OFF
• Ensures low-wattage LED
bulbs always turn OFF.
Guidelight
• Enable in the app to turn on
a guidelight at night instead
of the room lights when
motion is detected.
Air gap switch
•
Ambient Light
Sensor
•
Dim/bright bar
•
.
This feature will
stop power to the
dimmer. Gently
pull out the tab to
remove power to the
dimmer and lights.
After servicing is
complete, push
back in for normal
operation.
Detects amount of
ambient light in the
space.
Manually adjust light
levels.
FCC COMPLIANCE STATEMENT
The enc losed devic e complies wit h Part 15 of the FCC Rules. O peration is subjec t to
the following two co nditions: (i .) This de vice may not cau se harmful i nterferenc e (ii.)
This de vice must accept any i nterferenc e received, in cluding inte rference that may
cause u ndesired operat ion. Any change s or modificat ions not expre ssly approved by
Levito n could void the user’s au thority t o operate this equip ment. This e quipment
has be en tested and fo und to comply w ith the limit s for a Class B di gital device,
pursu ant to part 15 of t he FCC Rules. The se limits are d esigned to p rovide reas onable
protec tion again st harmful i nterferenc e in a resident ial install ation. This equip ment
generates uses and can radiate radio frequen cy energy an d, if not instal led and
used in accordance w ith the inst ruction s, may cause harmful i nterferenc e to radio
commu nications. However, th ere is no guara ntee that inte rference will not occur in a
part icular ins tallatio n. If this equi pment does ca use harmful i nterference to radio or
television recept ion, which ca n be determin ed by turning t he equipmen t off and on,
the us er is encoura ged to try to co rrect the in terference b y one or more of th e
follow ing measures:
• Reorient or rel ocate the rec eiving antenna.
• Conne ct the equi pment into an outlet on a circuit dif ferent from that to which the
eceiver is connected.
r
• Increa se the sepa ration between the equip ment and receiver.
• Consult the de aler or an exper ienced radio/TV tec hnician for h elp.
C CAUTIO N
FC
Any cha nges or modific ations not exp ressly approved by Lev iton Manufac turing Co.,
Inc., co uld void the user ’s authority to operate th e equipment.
FCC SUPPLIER’S DECLARATION OF CONFORMITY
Model D2MSD Wi-Fi Mot ion Sensing Dimmer is man ufactured by L eviton
Manufactur ing Co., Inc. 201 N. Se rvice Road, Melville, NY 11747. www.levit on.com
This de vice complie s with part 15 of the FCC Rules. Op eration is subject to the
follow ing two cond itions: (1) This dev ice may not cause harmful interference, and (2)
this d evice must ac cept any inter ference rece ived, includ ing interfe rence that may
cause undesired operation.
IC STAT EME NT
This device complies with Industry Canada license-exempt RSS standard(s).
Operation is s ubject to th e following t wo conditio ns: (1) this d evice may not
cause i nterference, and (2) thi s device mus t accept any interference, in cluding
inter ference that m ay cause undesired o peration of the device.
RF EXP OSURE AND CO -LOCATION
To comply wit h FCC OET Bullet in 65 and ISED RF ex posure limit s for general po pulation
and unc ontrolled e xposure, th is device shall be in stalled an d operated w ith a minimum
dist ance of 7.9 inches (20 cm) betw een the radia tor and your body. Also, mu st not be
co-lo cated or opera ted in conjunctio n with any oth er antenna or transm itter.
Copyright and Trademark Information
Decora and Decora Smart are the registered trademarks of Leviton Manufacturing Co.,
Inc., registered in the U.S., Canada, Mexico and China.
Google and Google Play are trademarks of Google LLC. Alexa, and related logos are
trademarks of Amazon.com, Inc. or its affiliates. Apple
trademarks of Apple Inc., registered in the U.S. and other countries.
Use of the Works with Apple badge means that an accessory has been designed to
work specifically with the technology identified in the badge and has been certified by
the developer to meet Apple performance standards. Apple is not responsible for the
operation of this device or its compliance with safety and regulatory standards.
Use herein of other third party trademarks, service marks, trade names, brand names
and/or product names are for informational purposes only, are/may be the trademarks
of their respective owners; such use is not meant to imply affiliation, sponsorship, or
endorsement. No part of this document may be reproduced, transmitted or transcribed
without the express written permission of Leviton Manufacturing Co., Inc.
Patents covering this product, if any, can be found on Leviton.com/patents.
Levito n Manufactu ring Co., Inc.
201 North Serv ice Road, Melville, NY 11747
© 2022 Levito n Manufactu ring Co., Inc. Al l rights re served.
Spec ifications subject to change at any ti me withou t notice.
®
, HomeKit®, and Siri® are
1 2 3 4
Features Before you installMotion Sensing
• Hands-free; automatically turns lights ON/OFF
when motion is detected.
• Voice control works with Hey Google, Amazon
Alexa, or Apple Siri.
• Easy app-based configuration of motion sensor
settings and modes.
•
Allows other connected Decora Smart Wi-Fi devices
in a room to be activated based on room occupancy.
• Supports 3-Way/Multi-location with Wired
Companions and Wireless Anywhere
Companions.
• Use the app to enable a Guidelight, that turns
ON when motion is detected at night, to
illuminate your way in the dark.
• Advanced settings for:
• Fade rates
• Pre-set light level or Return to last level
• Minimum dim / Maximum brightness
• Bulb types including non-dimmable loads
For more information and features, visit:
leviton.com/decorasmart.
• The D2MSD’s PIR Motion Sensor has a 180° field-of-
view, with a maximum sensor coverage area of 900
sq. ft. (30 x 30 ft).
• Motion Sensor Calibration: can be used in the My
Leviton app to test the Motion Sensor’s coverage
area, customize the sensor sensitivity, and enable
ambient light settings.
Horizontal field of view
15 FT.
10 FT.
10 FT.
15 FT.
Wall
Vertical field of view
Floor
20 FT.
30 FT.
20 FT. 30 FT.
Major motion coverage 900 ft
Minor motion coverage 400 ft
NOTE: Device should be installed on the wall, 40-48
inches above the floor.
Sensor modes can be configured under device
settings in the My Leviton app:
• Occupancy Mode: will automatically turn lights on
when motion is detected, and will turn lights off
when no motion is detected.
• Vacancy Mode*: requires you to manually turn
lights on, but will still turn the lights off when no
motion is detected.
• Guidelight: can be enabled to turn on at night and
softly illuminate a space when motion is detected,
instead of turning on the room lights.
* Pro Tip: Vacancy mode can be used to comply
with 2019 Title 24, Part 6 Vacancy Control Device
Requirements.
65 7 8
Installation requires electrical knowledge.
If you are unsure of any steps, consult an electrician.
Things to consider:
To control the motion dimmer from more than one
location, such as in a 3-way or multi-way, you will
need either a wired DD00R or DD0SR Companion
device, or a wire-free DAWDC or DAWSC Anywhere
2
Companion device (see page 14).
2
Learn more about Companion devices and find
connection instructions at
leviton.com/decorasmart
What you need to make
it work:
A 2.4GHz Wi-Fi network with high-speed internet.
An iOS (Version 12.0 or later) or Android (Version
8.0 or later) mobile device.
NOTE: Make sure Wi-Fi and Bluetooth are enabled
on your mobile device.
A My Leviton cloud account
(set up through the My Leviton app).
Identify your wires
WARNING: TO AVOID FIRE, SHOCK, OR DEATH, turn
off power at the circuit breaker.
Check your wall box:
1. Remove wallplate and disconnect existing switch.
2. Restore power. Carefully test wires with voltage
tester to find the Line (Hot) wire.
3. Turn off power at the circuit breaker.
4. Mark the wires as shown below. Please note Neutral
.
wires are required to operate this device.
Quick tip: Neutral wires are typically white and will
be found bundled inside the electrical box.
To Light
LOAD
LINE
From
Branch Circuit
If your wall box looks different,
call an electrician.
NEUTRAL
GROUND

Wire your Motion
Dimmer
Single pole installation:
1. Work only one connection at a time.
2. Connect wires as shown, using the included
wire connectors.
NOTES:
• Neutral connection is required.
• The YELLOW/RED Traveler wire is only used in hard-
wired 3-way applications. Remember to put a wire
connector on the YELLOW/RED Traveler even if not in
use.
To Light
LOAD
LOAD
LINE
NEUTRAL
GND
TRAV
TRAVELER
If your wall box contains a different wiring
configuration, contact Leviton’s Technical
Support team or consult an electrician.
LINE
NEUTRAL
GROUND
From
Branch Circuit
NEUTRAL
GROUND
Test and install
1. Restore power. Status LED should flash GREEN.
This will indicate that your Motion Dimmer is ready
to be enrolled.
2. After powering on
the Motion Dimmer
to confirm it is
receiving power, turn
the power back
off again at the
breaker. Do this prior
to completing the
installation.
Turn off power at the circuit
breaker before screwing in your
Motion Dimmer.
3. Gently push wires
into wall box.
Screw Motion
Dimmer to box.
4. Snap on Decora
and restore power.
Once power is restored, the status
LED will blink GREEN, indicating
your device is in Setup mode. See
page 16 if your status LED is not
blinking GREEN.
Your Decora Smart Motion Sensing
Dimmer is ready to control your lights.
®
wallplate
Congratulations!
Get the app Device setup
visit my.leviton.com and select the link, or s
To download the app,
can
the QR code below for your device.
Changing Sensor mode
You can use the My Leviton app to adjust all Motion
Sensor settings. If you do not have Wi-Fi available, you
can switch between Occupancy and Vacancy mode on
the device if needed. The Motion Sensing Dimmer is
defaulted to Occupancy mode.
NOTE: The default Vacancy settings can be used to
comply with 2019 Title 24, Part 6 Vacancy Control
Device requirements.
1. Press the ON/OFF button 7 times in sequence.
2. The device will change Sensor mode and the Status
LED will briefly flash:
• GREEN, if in Occupancy mode
• RED, if in Vaccancy mode
• The Decora Smart Wi-Fi 2nd Gen Motion Sensing
Dimmer can be connected to the My Leviton
service, Apple HomeKit, or both.
• For voice control with Amazon Alexa or Google
Assistant, you will need to set up the device with
My Leviton.
• For voice control with Siri, you will need to connect
your device to Apple HomeKit. See page 15 for
instructions on how to add your device to
Apple HomeKit.
Add your device to
My Leviton
1. Make sure the device is in Setup mode (status LED
should be blinking GREEN). If the status LED is not
blinking GREEN, see page 16 for instructions on
how to put the device in Setup mode.
2. Launch the My Leviton app.
3. Log in or choose “Sign Up” to create a new account.
4. Follow the instructions on the screen.
5. Once logged in, tap the “+” in the upper right corner
and select “Add Device.”
6. Follow the app instructions to add your device and
to connect it to your home Wi-Fi network.
Test My Leviton
app control
1. Open the My Leviton app.
2. Tap icon to turn the
Motion Sensing
Dimmer ON/OFF.
Quick tips
• The My Leviton app includes many features such
as: room occupancy based on motion, room scenes,
whole-house activities, remote control, Vacation
mode, and advanced options for bulb type, fade
rates, preset light level, and minimum dim/maximum
brightness.
• Self-service support options can be found in the My
Leviton app or at decorasmartsupport.leviton.com.
9 10 11 12 13
Connect to My Leviton
partners (optional)
works with
Hey Google
Visit my.leviton.com for a complete list of
compatible smart home products.
1. Tap menu icon in
lower right corner.
2. Tap Integrations, locate the
desired service, select it, and
follow the instructions.
Pair an Anywhere
Companion
1. Place the Anywhere Companion in Pairing
mode by pressing the top rocker 5 times. Its
Status LED will blink GREEN.
2. Place the primary Decora Smart Wi-Fi Motion
Sensing Dimmer into Pairing mode by
pressing the ON/OFF button 5 times.
The Status LED will flash GREEN/AMBER.
3. The Decora Smart Wi-Fi Motion Sensing
Dimmer will automatically pair to the
Anywhere Companion in Pairing mode in
wireless RF range. Once paired, the Status
LED will quickly flash GREEN to show a
successful connection.
Learn more about Companion devices and find connection
instructions at leviton.com/decorasmart.
Add your device to Apple
HomeKit (optional)
NOTE: Skip Step 1 if your device is already enrolled in
My Leviton and on your Wi-Fi network.
1. Make sure the device is in Setup mode (status LED
should be blinking GREEN). If the status LED is not
blinking GREEN, see page 16 for instructions on how
to put the device into setup mode.
2.
Using an iOS device, open the Apple Home app and select
“Add Accessory”
.
3. Locate and scan the HomeKit setup code on your
device or on the front page of this Getting
Started Guide.
4. Follow the instructions in the Apple Home app.
5. Once the device is set up, you will be able to voice
control your Decora Smart Wi-Fi Motion Sensing
Dimmer with Apple Siri.
Diagnostic LED
If your device is not connecting to the My Leviton
app, the Status LED can be used as a diagnostic
tool. Press the ON/OFF button for at least 2 seconds
(but no more than 7 seconds), and then release. The
Status LED will blink a diagnostic code for 2 seconds.
CO L O R STAT U S
Amber Not connected to Wi-Fi.
d
Re
Green/Amber,
Alternating
Green
Connected to Wi-Fi, but unable to connect to
the My Leviton cloud.
Connected to Wi-Fi and My Leviton cloud, but
unable to set the time from the internet.
Connected to Wi-Fi, and the My Leviton cloud is
working properly.
1514 16 17
Status LED
COLOR ACTIVITY STATUS
Green Flashing
Green Slow Blink
Green or
Off
Amber Slow Blink
Green/
Amber
Red Blink
Green/Red/
Amber
Solid
Alternating
Blink
Alternating
Blink
In Setup mode and r
to a Wi-Fi network.
Connecting to a Wi-Fi network on
power up.
Normal operation. Can be configured
in a setup.
Device is not connected to the WiFi network, but is attempting to
reconnect.
Device is in wireless Anywhere
Companion Pairing mode.
Wireless Anywhere Companion
devices have unpaired or are at max
number of paired devices.
Identify feature triggered from the
My Leviton app.
eady to be added
Setup mode
1.
Hold the ON/OFF button for 7 seconds
until the status light turns AMBER.
Then release.
2. The status light will flash GREEN.
The device is now in Setup mode.
NOTE: To exit, hold ON/OFF button
for 7 seconds while in Setup mode.
Factory default reset
Hold the ON/OFF button for 14 seconds.
1.
2. After the first 7 seconds, the status light will turn
AMBER. Continue to hold.
3. After 7 more seconds, the status light will quickly
flash RED/AMBER.
4. Release the ON/OFF button and the device will reset.
What to do if...
When power is applied, the manual buttons do not control the
lights and the lights do not turn ON when motion is present:
• Verify that the wiring connections are secure.
• For proper operation, the Motion Dimmer needs a Line (Hot),
Neutral, Load, and Ground connection.
When power is applied, the light turns ON, but Motion
Dimmer is not able to change the light level:
• Confirm that the white conductor is a Neutral.
• If using LED or CFL bulbs, make sure they are dimmable.
Motion Dimmer does not dim low enough, or begins to
flicker at the low end of the dimming range:
• Use the My Leviton app to increase the minimum dim level
to the point that it does not cause the LED bulb to flicker.
Lights do not turn ON when motion is detected:
Motion may be beyond sensing range - move closer to device.
•
• Go to Motion Sensor Calibration in the My Leviton app to
increase the sensor sensitivity and coverage area, or adjust
the ambient light settings.
• Make sure you are in Occupancy mode.
Lights always stay ON:
• Check app settings for how long the Motion Dimmer waits
before turning the lights OFF after no motion is detected.
• Check that Dimmer is not installed near a heat source or
detecting motion from an adjacent area (e.g., hallway traffic)
• Make sure you are in Occupancy mode.
Intermittent dimmer operation:
• Confirm that the Load does not exceed its ratings.
Not connected to Wi-Fi:
• If your device is set up in the My Leviton app, select your
device, and then select “Device Settings“. On the “Device
Settings” screen, select “Reconfigure Wireless“. Follow
prompts to reconfigure device and update Wi-Fi settings.
How do I clean my device?
• To clean use a damp cloth with mild soap. DO NOT use
disinfecting products, including foggers, sprays or other
types of atomized cleaning agents.
Visit leviton.com/decorasmart or contact Technical Services
for additional help.
Safety first
WARNINGS:
• TO AVOID FIRE, SHOCK, OR DEATH, TURN OFF POWER a
breaker or fuse and test that power is off before wiring!
• TO AVOID FIRE, PERSONAL INJURY, OR PROPERTY DAMAGE,
DO
NOT install to control a receptacle, a motor, or transformer
operated appliance.
• This product is to be installed and/or used in accordance with
e
lectrical codes and regulations.
• For indoor use only.
•
If you are unsure about any par t of these instructions, consult
an electrician.
CAUTIONS:
• Use with compatible 120V dimmable LED/CFL bulbs, incandescent,
h
alogen, or magnetic low-voltage (MLV) fixtures. For ON/OFF control of
non-dimmable bulbs, such as fluorescent li ghting, the non-dimmable
bulb type must be selected in the My Lev iton app. Use a Leviton
electronic low-voltage dimmer to control electronic (solid state) lowvoltage transformers. For a list of compatible LED and CFL bulbs, refer
to www.leviton.com.
•
DO NOT mix bulb types when multiple bul bs are used with one dimmer.
Using the same make/model of each bulb will enhance
dimmer performance.
• The Decora Smar t D2MSD dimmer is not compatible with standard
3-way or 4-way switches. It must be used with up to 4 Decora
DD00R-DL or DD0SR companions for wired multi-location dimming.
• Maximum wire length from dimmer to all installed companion dev ices
c
annot exceed 300 ft (90m).
• Save this instruction sheet. It contains impor tant technical data,
a
long with testing and troubleshooting information, which will be
useful after installation is complete.
• Dimmer may feel warm to the touch during normal operation.
• Recommended minimum wall box depth is 2-3/4 in.
• Use this dimmer with copper or copper-clad wire only.
• Leviton Wi-Fi enabled devices rely on Wi-Fi communication.
Fo
r customers looking to install a large number of devices, it is
recommended to consult the wireless network’s access point
specifications to determine the maximum number of supported
Wi-Fi devices. In some cases, for example large installations, it may
be necessar y to upgrade to newer high-performance wireless grade
access points to ensure proper operation.
ADDITIONAL RATINGS:
• Purpose of Control: Operating Control
• Action Control Type: 1
• Pollution Degree: 2
• Impulse Voltage: 2500V
• Disconnection Type: Micro
t circuit
®
Smart
Limited 2 Year Warranty & Exclusions
For Leviton’s limited product warranty, go to www.leviton.com. For a
printed copy of the warranty, call 1-800-824-3005.
FOR CANADA ONLY
For warranty informat ion and/or product returns, residents of Canada
should contact Leviton in writing at Leviton Manufacturing of Canada
ULC, to the attention of the Quality Assurance Department, 165 Hymus
Blvd, Pointe-Claire (Quebec), Canada H9R 1E9, or by telephone
at 1-800-405-5320.