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Copyright © 2016 Nortek Security & Control 1
SMOKE DETECTOR SENSOR
The 2GIG Smoke Detector Sensor, part number 2GIG-SDS1-345, is a 110V AC
powered sensor. It monitors the interconnect line on interconnected hardwired
smoke detector systems and sends out a transmission when smoke is detected
at any of the smoke alarm units connected on the same circuit. The device has
LEDs to visually indicate the status of the sensor. A single CR2032 ba ery provides
backup power in the event that AC power is lost on the smoke detector system
circuit. The smoke detector sensor communicates with a compa ble 2GIG control
panel and can send alarm, low ba ery, AC power loss, and supervisory messages
to the system's receiver.
Contents of Carton:
• 1-Smoke Detector Sensor
• 2-2" long 10-32 Screws
• 1-CR 2032 3 Volt Coin Ba ery
Figure 1. 2GIG-SDS1 Kit
IMPORTANT: This device must be tested and maintained regularly. This device
is intended for use with compa ble smoke detectors, but will not detect the
presence of smoke, heat, or fi re directly.
✓ Note: Each of the smoke alarms part of interconnected smoke alarms must be:
• Present in every required loca on per NFPA 72,11.5.1
• Confi rmed as less than ten years from date of installa on (or manufacture).
Please check label on the device or original smoke detector device manual.
• Hardwired to a single, common 120V AC circuit designated for interconnected
• Pass the manufacturer's stated tes ng regimen to confi rm proper interconnect
• Have fresh back-up ba eries.
• On the list of compa ble models (any model not listed may work but has not
been compa bility tested.
• This device shall not be installed in loca ons where the normal ambient
temperature is below 40F(4.4C) or exceeds 100F (37.8C), unless the alarm has
been determined capable of being used at installa on points with higher or
lower ambient temperatures.
• Please see sec on at the end regarding informa on on the proper installa on
of smoke detectors that are intended to work with the Smoke Detector Sensor.
• This device is not intended to work with smoke alarms paired with smoke alarm
guards, unless the combina on has been evaluated and found suitable for this
Compatible Smoke Alarm Models
• BRK Brands Model 7010B: AC Powered Photoelectric Smoke Alarm with Ba ery Backup
• Firex Kidde Model i4618: Hardwire Ioniza on Smoke Detector with Ba ery Backup
• First Alert BRK Model 9120B: Hardwired Smoke Alarm with Ba ery Backup
• Kidde Model i12040: 120V AC Wire-in Smoke Alarm with Ba ery Backup
• USI Electric Model 5304: Hardwired Ioniza on Smoke and Fire Alarm with
Ba ery Backup
CAUTION: Before a emp ng installa on, locate the primary electrical circuit
that powers the interconnected hardwired smoke detector system and shut oﬀ
or disconnect power to this circuit. An electrical shock hazard is present if this
electrical circuit is not temporarily disabled during installa on.
WARNING: Remember to turn on or reconnect power to the primary electrical
circuit that powers the interconnected hardwired smoke detector system. The fi re
warning system may be disabled if electrical power is not restored to the system
Select a smoke detector that will be used to provide power and communicate to
the smoke detector sensor. Any smoke detector that is within range of a wireless
2GIG receiver can be selected if the smoke detector is part of an interconnected
Remove the exis ng smoke detector from the exis ng moun ng bracket. This is
usually done by twis ng the detector counter clockwise or clockwise from where
it is mounted.
Figure 2. Remove Exis ng Smoke Detector from Smoke Detector Moun ng Bracket
Figure 3. Unplug Pigtail of Exis ng Smoke Detector
Unplug the exis ng smoke detector from the smoke detector pigtail. Loosen the
two screws used to hold the exis ng moun ng bracket and remove it from the
wall or ceiling.
Figure 4. Remove Exis ng Smoke Detector Moun ng Bracket from Wall or Ceiling
INSTR,INSTL,2GIG-SDS1-345 - P/N: 10010592 X8- INK: BLACK - MATERIAL: 20 LB. MEAD BOND - SIZE: 8.500” X 11.000” - TOL. +/- 0.020”- SCALE: 1-1 - PAGE 1 OF 2- FOLDING: FOLD 1X TO FINAL SIZE: 8.500" X 5.500"- FINISH WITH LOGO SHOWING
10-32 X 2”
EXISTING SMOKE DETECTOR
REMOVE EXISTING SMOKE
BRACKET FROM WALL OR
IN WALL OR
2 Copyright © 2016 Nortek Security & Control
Figure 5. Install Smoke Detector Sensor between Wall and Moun ng Bracket
Place the smoke detector sensor where the exis ng moun ng bracket was
located. Make sure the wire/wiretaps are inserted through the center opening of
the smoke detector moun ng bracket.
Place the exis ng smoke detector moun ng bracket on top of smoke detector
sensor. Align the smoke detector sensor and the smoke detector moun ng
bracket and replace the two screws used to hold the bracket in place. Tighten all
✓ NOTE: It is suggested that the smoke detector sensor LEDs be oriented towards
the bo om or in a manner that allows the LEDs on the unit to be visible.
Figure 6. Wiretaps/Wires, & Pigtail through Center
Figure 7. Crimping Wiretaps onto Wires
Figure 8. Wiretap Connec ons
Wiring the Connections
Before connec ng the wires from the smoke detector sensor, iden fy the (+) line
(hot) 120VAC wire and the neutral wire. Usually the (+) line (hot) 120VAC wire
will be black and the neutral wire white. Use a voltmeter or voltage sensor to
verify that the proper wires are selected. You may need to reconnect power to the
electrical circuit powering the interconnected hardwired smoke detectors in order
to do this (Figure 8).
WARNING: Remember to disconnect or shut oﬀ electrical power to the
interconnected hardwired smoke detector if it was powered on in the previous
step to iden fy the 120VAC wires.
Use an electrician’s linesman plier or equivalent tool (See Figure 8) and using the
installed wiretaps on the device, crimp the wiretap with the black wire onto the
120VAC line (hot) wire.
✓ NOTE: Wiretaps must be used on a sec on of stranded wire. This is typically
located between the connector to the smoke detector and the wire nut.
The wiretap with the yellow wire should be a ached to the wire lead connected
to the interconnect wire of the smoke detector. This wire is typically yellow or
Once all (3) three wiretaps have been installed (Figure 8), rea ach the electrical
wire pigtail to the back of the smoke detector unit and mount the smoke detector
on the moun ng base (Refer to Figure 3).
Installing the Back-Up Battery
Figure 9. Installing Back-up Ba ery
WARNING: Ensure that the smoke detector sensor has been wired correctly.
Damage to the smoke detector sensor may occur if the 120 VAC line (hot) wire
neutral wire are reversed. The unit may fail to func on properly if incorrectly
Turn on or reconnect power to the primary electrical circuit that powers the
interconnected hardwired smoke detector system. The device should now power
Use a fl at bladed tool, slide out the ba ery tray that holds the backup ba ery.
Insert a CR2032A ba ery (included) into the ba ery slot. Slide the ba ery tray
back into the device (Figure 9).
✓ NOTE: Orient the (+) ba ery terminal up so that it is visible when facing the unit.
Programming the Sensor
Follow the instruc ons on how to program a sensor into a compa ble 2GIG control
panel. See the 2GIG control panel’s Installa on & Programming Guide for more
informa on on how to learn a sensor into the control panel.
The device should learn in as a Loop 1 sensor device. Use a small paper clip or other
sharp object and carefully insert into the learn/test bu on hole. This will send
out an alarm transmission ID so the the sensor can be learned into a compa ble
control panel or can be used to test that the transmi er is working properly.
Replacing the Battery
If the compa ble control panel shows that this sensor has a low ba ery, the
backup ba ery may need to be replaced.
Use a fl at headed screw driver or other tool to slide the ba ery tray out of the
device. Remove the ba ery from the tray and replace with a new CR2032A
ba ery. Slide the ba ery tray back into the unit, making sure that the tray is fully
inserted into the unit.
✓ NOTE: Use Panasonic CR2032A ba eries or equivalent. Use of another ba ery
may damage or nega vely aﬀ ect the opera on of the device.
The Smoke Detector Sensor does not have an End-of-Life (EOL), however the
smoke detector(s) that this device monitors may have an EOL condi on. Follow
the owner's manual for the smoke detector regarding instruc ons on proper
smoke detector EOL condi ons.
WITH LED’S AT BOTTOM
• BLACK TO BLACK (120 VAC)
• WHITE TO WHITE (NEUTRAL)
• YELLOW TO YELLOW OR
SMOKE AND CARBON
BATTERY + POLARITY
1. PLACE WIRE
2. HINGE WIRETAP
UP AND OVER
EXISTING SMOKE DETECTOR
WALL ACCESS HOLE
Copyright © 2016 Nortek Security & Control 3
Sequential green, orange,
red fl ashes
Green LED fl ash every 48s
Red fl ash every 1s
Alarm (Loop 1)
On screen and
audible alarm (Use
code to silence)
Loss of AC Power
Orange fl ash every 20s
On screen alert
name- Battery Low"
or "AC Loss"
Low Battery Fault
Orange fl ash every 4s
On Screen alert
name- Battery Low
Sequential green, orange,
red fl ashes
On screen and
audible alarm (use
code to silence)
Testing the Smoke Detector System
Figure 10. Loca on of LEDs and Learn/Test Bu on Hole
The device should be tested in accordance with NFPA 72 guidelines. The following
instruc ons are intended to provide a general guideline on how to test the smoke
detector system, smoke detector sensor, and communica ons to an alarm panel.
Follow the smoke alarm instruc on manual on tes ng the smoke alarm and any
interconnected units. There usually is a test bu on on the smoke detector that can
be pressed to ini ate a test mode. This should cause the sounder to alarm and also
any smoke detectors that are interconnected to also alarm.
The smoke detector sensor should send out a transmission to a compa ble alarm
If this transmission is not received, fi rst check if the Smoke Detector Sensor is
properly programmed into a compa ble alarm panel. Please follow the alarm
panel instruc ons on learning in a sensor.
Also, check that the interconnect wire on the smoke detector is properly connected
to the Smoke Detector Sensor. The LEDs on the Smoke Detector Sensor should
fl ash red indica ng that it has received the alarm signal from the smoke detector.
Testing the Smoke Detector Sensor Radio Transmission Only
The Smoke Detector Sensor incorporates a small test bu on. This test bu on can
be ac vated by inser ng a straightened paper clip or sharp object into the Learn/
Test hole. The Smoke Detector Sensor will then send an alarm signal transmission
to a compa ble alarm panel. This can be used to test that the Smoke Detector
Sensor will send a proper transmission to an alarm panel. This DOES NOT test if
the wiring between the smoke detector and the smoke detector sensor is correct.
Troubleshooting Installation Chart
When tes ng the installa on of a smoke detector sensor, check for these common
Smoke detector is in
LED on smoke
detector sensor do not
Alarm panel does not
receive alarm signals
Check to make sure
interconnect wire from
the smoke detector is
to the smoke detector
Smoke detector is in
LED on smoke
detector sensor works
Alarm panel does not
receive alarm signals
Check to make
sure the smoke
detector sensor is
properly learned or
programmed into a
120VAC 50/60Hz 12W
3-Volt CR2032 Battery or Equivalent
Backup Battery Life
32°F to 122°F (0°C to 50°C)
5–95% RH non-condensing
Wireless Signal Range
FCC/IC and ETL
Selecting a Location
Selec ng a suitable loca on is cri cal to the opera on of smoke alarms. This
equipment should be installed in accordance with Na onal Fire Protec on
Associa on’s (NFPA) Standard 72 (see Figure 11).
A-11-8.3a Where to Locate the Required Smoke Alarms in
The major threat from fi re in a family living unit occurs at night when everyone is
asleep. The principal threat to persons in sleeping areas comes from fi res in the
remainder of the unit. Therefore, a smoke alarm(s) is best located between the
bedroom areas and the rest of the unit. In units with only one bedroom area on
one fl oor, the smoke alarm(s) should be located as shown in Figure 11A.
In family living units with more than one bedroom area or with more than one
fl oor, more than one smoke alarm is required, as shown in Figure 11C.
In addi on to smoke alarms outside of the sleeping areas, the installa on of a
smoke alarm on each addi onal story of the family living unit, including the
basement, is required. These installa ons are shown in Figure 11B. The living area
smoke alarm should be installed in the living room or near the stairway to the
upper level, or in both loca ons. The basement smoke alarm should be installed
in close proximity to the stairway leading to the fl oor above. Where installed on
an open-joisted ceiling, the alarm should be placed on the bo om of the joists.
The alarm should be posi oned rela ve to the stairway to intercept smoke coming
from a fi re in the basement before smoke enters the stairway (Figure 11D).
Figure 11. Smoke Alarm Placement
Where to Locate the Required Smoke Alarms in New Construction.
All of the smoke alarms specifi ed for exis ng construc on are required and, in
addi on, a smoke alarm is required in each bedroom.
Are More Smoke Alarms Desirable?
The required number of smoke alarms might not provide reliable early warning
protection for those areas separated by a door from the areas protected by the
required smoke alarms. For this reason, it is recommended that the householder
consider the use of additional smoke alarms for those areas for increased protection.
The additional areas include the basement, bedrooms, dining room, furnace
room, utility room, and hallways not protected by the required smoke alarms. The
installation of smoke alarms in kitchens, attics (fi nished or unfi nished), or garages is
not normally recommended, as these locations occasionally experience conditions
that can result in improper operation.
Since regulations pertaining to smoke alarm/detector installation vary from state
to state, contact the authority having jurisdiction (AHJ). Where public safety is
primary, the AHJ may be federal, state, local, or other regional department or
individual such as a fi re chief, fi re marshal, chief of a fi re prevention bureau,
LEDS ON SMOKE
A smoke alarm should be located
between the sleeping area and
the rest of the family living unit.
In family living units with more
than one (1) sleeping area, a
smoke alarm should be provid-
ed to protect each sleeping
Indicates a required
Indicates an optional
smoke alarm if door
is not provided be-
tween living and rec-
al smoke alarms
required for new
A smoke alarm
should be located
on each story.
IMPORTANT: Regulations pertaining to smoke alarm installations vary. For
more information, contact your local fire department or local authority having
In split-level configu-
alarms are optional
where a door is not
provided between a
living and recreation
4 Copyright © 2016 Nortek Security & Control
labor or health department, building offi cial, electrical inspector, or others having
statutory authority. For insurance purposes, an insurance inspection department,
rating bureau, or other insurance company representative may be the AHJ. In
some cases, the property owner or their designated agent assumes the role of the
AHJ. At government installations, the commanding offi cer or department offi cial
may be the AHJ.
In addition to NFPA 72, use the following location guidelines to optimize
performance and reduce the chance of false alarms from the alarm:
• Locate ceiling-mounted smoke alarms in the center of a room or hallway at
least 4 inches (10cm) from any walls or partitions.
• Locate wall-mounted smoke alarms so the top of the alarm is 4 to 12 inches
(10 to 31cm) below the ceiling.
• Locate in a suitable environment as follows:
• Temperature between 40°F (4.4°C) and 100°F (37.8°C)
• Humidity between 0 and 95% non-condensing
• Locate away from air conditioners, heating registers, and any other ventilation
source that may interfere with smoke entering the alarm.
• Mount smoke alarms on a fi rm permanent surface.
• Locate away from large metallic objects to reduce shielding of the wireless
Smoke alarms are not to be used with detector guards unless the
combination has been evaluated and found suitable for that purpose.
WARNING! LIMITATIONS OF SMOKE ALARMS
Wireless smoke alarms are very reliable, but may not work under all conditions.
No fi re alarm provides total protection of life or property. Smoke alarms are not a
substitute for life insurance.
Smoke alarms require a source of power to work. This smoke alarm will not
operate and the alarm will not sound if batteries are dead or not installed properly.
Smoke alarms may not be heard. A sound sleeper or someone who has taken
drugs or alcohol may not awaken if the alarm is installed outside a bedroom.
Closed or partially closed doors and distance can block sound. This alarm is not
designed for the hearing impaired.
Smoke alarms may not always activate and provide warning early enough.
Smoke alarms only activate when enough smoke reaches the alarm. If a fi re starts
in a chimney, wall, roof, on the other side of closed doors, or on a different level of
the property, enough smoke may not reach the alarm for it to be activated.
Smoke alarms are a signifi cant help in reducing loss, injury and even death.
However, no matter how good a detection device is, nothing works perfectly under
every circumstance and we must warn you that you cannot expect a smoke alarm
to ensure that you will never suffer any damage or injury.
Current studies have shown smoke alarms may not awaken all sleeping individuals.
It is the responsibility of individuals in the household that are capable of assisting
others to provide assistance to those who may not be awakened by the alarm
sound, or to those who may be incapable of safely evacuating the area unassisted.
FIRE PREVENTION AND ESCAPE
The purpose of an early warning smoke alarm is to detect the presence of fi re in
its early stages and sound an alarm giving the occupants time to exit the premises
AVOID FIRE HAZARDS
No detec on device can protect life in all situa ons. Therefore, safeguards should
be taken to avoid poten ally dangerous situa ons as follows:
• Do not smoke in bed.
• Do not leave children home alone.
• Never clean with fl ammable liquids such as gasoline.
• Properly store materials. Use general good housekeeping techniques to
keep your home neat and tidy. A cluttered basement, attic, or other storage
area is an open invitation to fi re.
• Use combustible materials and electrical appliances carefully and only for
their intended uses. Do not overload electrical outlets.
• Do not store explosive and/or fast burning materials in your home.
• Even after proper precautions have been taken, fi res can start. Be prepared.
IN CASE OF FIRE
In the event of a fi re:
• Leave immediately. Don’t stop to pack or search for valuables.
• In heavy smoke, hold your breath and stay low, crawl if necessary. The
clearest air is usually near the fl oor.
• If you have to go through a closed door, carefully feel the door and door knob
to see if undue heat is present. If they seem cool, brace your foot against the
bottom of the door with your hip against the door and one hand against the
top edge. Open it slightly. If a rush of hot air is felt, slam the door quickly and
latch it. Unvented fi re tends to build up considerable pressure. Be sure all
members of the household realize and understand this danger.
• Use your neighbor’s phone or a street fi re alarm box to call the fi re department.
The job of extinguishing the fi re should be left to the professionals.
Prac ce the following steps to prepare you and your family in the event of a fi re:
• Perform fi re drills regularly. Use them to assure recognition of an alarm
• Draw a fl oor plan and show two exits from each room. It is important that
children be instructed carefully, because they tend to hide in times of crisis.
• Establish one meeting place outside the home. Insist that everyone meet
there during an alarm. This will eliminate the tragedy of someone reentering
the house for a missing member who is actually safe.
• If you have children and/or physically challenged people residing in your
household, use window decals to help emergency personnel identify the
sleeping quarters of these individuals.
FCC COMPLIANCE STATEMENT
This device complies with Part 15 of the FCC Rules and Industry Canada license exempt standard(s).
Opera on is subject to the following two condi ons:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference received that may
cause undesired opera on.
Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio
exempts de licence. L’exploita on est autorisée aux deux condi ons suivantes:
(1) l’appareil ne doit pas produire de brouillage, et
(2) l’u lisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est suscep ble d’en comprome re le fonc onnement.
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protec on
against harmful interference in a residen al installa on.
This Class B digital apparatus complies with Canadian ICES-003
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instruc ons may cause harmful interference to radio communica ons.
However, there is no guarantee that interference will not occur in a par cular installa on. If
this equipment does cause harmful interference to radio or television recep on, which can be
determined by turning the equipment oﬀ and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separa on between the equipment and receiver
• Connect the equipment into an outlet on a circuit diﬀ erent from that to which the receiver is
• Consult the dealer or an experienced radio/TV technician to help.
WARNING: Changes or modifi ca ons not expressly approved by the manufacturer could void the
user’s authority to operate the equipment.
This Nortek Security & Control LLC product is warranted against defects in material and
workmanship for two (2) years. This warranty extends only to wholesale customers who buy direct
from Nortek Security & Control LLC or through Nortek Security & Control normal distribu on
channels. Nortek Security & Control does not warrant this product to consumers. Consumers
should inquire from their selling dealer as to the nature of the dealer’s warranty, if any.
There are no obliga ons or liabili es on the part of Nortek Security & Control for consequen al
damages arising out of or in connec on with use or performance of this product or other indirect
damages with respect to loss of property, revenue, or profi t, or cost of removal, installa on, or
reinstalla on. All implied warran es for func onality, are valid only un l the warranty expires. This
Nortek Security &Control Warranty is in lieu of all other warran es express or implied.
Nortek Security & Control LLC
1950 Camino Vida Roble, Suite 150
Carlsbad, CA 92008-6517 USA
For technical support in the USA and Canada:
Visit www.nortekcontrol.com for technical support hours of opera on
For technical support outside of the USA and Canada:
Contact your regional distributor
Visit dealer.2gig.com for a list of distributors in your region