First Alert BRK Brands Hardwired Ionization Smoke Alarm with 10-Year Battery Backup - 9120LBL
Hardwired Smoke Alarm with Battery Backup
The First Alert 9120LBL Hardwired Interconnected Smoke Alarm with Lithium Battery-Backup is a great choice when it comes to affordable smoke alarms. In the event of a power outage, this smoke alarm is equipped with a 10 year lithium battery back-up.
Ionization Sensor Reliably Detects Flaming Fires
The First Alert 9120LBL Hardwired Smoke Alarm with Battery Backup comes equipped with an ultra-reliable ionization sensor to provide the earliest possible warning of a fast-flaming fire. The sensor is optimized to detect flaming fires, such as those caused by paper, kitchen grease, and other fast-combusting materials. This smoke alarm also implements Smart Technology to drastically reduce the number of nuisance alarms triggered.
Gasket-less for Easy Installation
To facilitate hassle-free installation, this smoke alarm features a perfect mount system that includes a base and a mounting bracket. This keeps the alarm secure over a wide rotation range that allows for true alignment.
Latching Alarm Indication
In addition to functioning independently, this smoke alarm can also integrate with up to 12 other First Alert or BRK hardwired alarms for coverage of larger spaces. It also integrates with up to six other compatible devices, such as bells, horns, and repeaters. If one alarm in the series is triggered, they will all sound. The alarm features a latching indicator to identify which unit triggered the alarm, alerting you to the area of danger.
10-Year Lithium Battery Backup
The First Alert 9120LBL Hardwired Interconnected Smoke Alarm features a built-in 10-year lithium battery backup that provides continuous power for the life of the detector. An end-of-life timer lets you know when the device should be replaced.
First Alert BRK Brands Hardwired Ionization Smoke Alarm 9120LBL
How to Install First Alert 9120LBL Hardwired Smoke Alarms:
In this guide, we'll be showing you how to install First Alert Hardwired Smoke and Carbon Monoxide Alarms. Here are a few items you'll need before starting the installation process: Needle-nose pliers or utility knife, screwdriver, wire stripper, wire nuts and a ladder.
Hardwired Smoke or Carbon Monoxide Alarm Requirements:
- 120V household electrical circuit (unswitched 120VAC)
- Standard wiring junction box to a 4 in. (10 cm) size, on either the ceiling or wall
- Selecting an appropriate location to install your smoke and carbon monoxide alarms (see below guidelines for additional information):
- When installing an alarm on the wall, the top edge of an alarm should be placed between 4 in. (100 mm) and 12 in. (300 mm) from the wall/ceiling line.
- When installing an alarm on the ceiling, place the alarm as close to the center as possible.
- In either case, install the alarm at least 4 in. (100 mm) from where the wall and ceiling meet.
- First Alert Smoke Alarm FAQs
- First Alert Carbon Monoxide Alarm FAQs
Connecting First Alert Hardwired Alarms to 120V Wiring
To begin, turn off power at the junction box and connect your alarm to the building's electrical wiring.
- Locate the junction box and turn off power
- Remove the power connector from the new alarm's packaging
- Using wire nuts, attach the hot (black), neutral (white), and interconnect (orange) wires
| Black wire (hot) |
Attach to black wire on power connector |
| White wire (neutral) |
Attach to white wire on power connector |
| Orange wire (interconnect) |
Standalone (single-station) alarm: This wire is not needed; tuck the orange wire into the junction box. Interconnected alarms:
|
Mounting First Alert Hardwired Alarms
- Secure the mounting bracket to the ceiling or wall using screws (included in the package)
- Insert the power connector into the plug on the back of your alarm
- Tuck any hanging wires into the junction box
- Position the base of the alarm onto the bracket and turn it clockwise until it's secured
- Remove the pull-tab to activate the backup battery
Installing Additional and/or Interconnecting First Alert Hardwired Alarms
If you are installing more smoke or carbon monoxide alarms, you'll want to repeat the process throughout the building. Interconnected smoke and co alarms must meet all requirements:
-
The same fuse or circuit breaker must power all interconnected alarms.
-
Up to 18 compatible detectors can interconnect, with a limit of 12 smoke alarms.
-
The total length of wire interconnecting the alarms should be less than 1,000 ft. (300 meters). This type of wire is commonly available at hardware and electrical supply stores.
-
All wiring must conform to all local electrical codes and NFPA 70 (NEC). Refer to NFPA 72, NFPA 101, and your local building code for more information.
-
Interconnect wiring diagram:
If you have any doubts or reservations about these interconnect requirements, please contact an experienced electrician to install your wiring and hardwired alarms.
Restoring Power and Testing Hardwired Alarms
Once you've installed your hardwired alarms, you'll want to restore power to the junction box. Under regular operation, the power indicator light on the alarm will shine/blink to indicate that it is receiving AC power.
Here's how you can test standalone or interconnected alarms:
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Standalone Alarms: Press and hold the Test/Silence button until the unit triggers an alarm.
-
Interconnected Alarms: Press and hold the Test/Silence button until the first unit triggers an alarm. All interconnected detectors should sound off. Repeat this process to test each alarm in the interconnected series.
- You may not be holding the test button down long enough. Try holding it down for up to 10 seconds (20 seconds on photoelectric models) .
- Your battery may not be installed properly or snapped all the way in place. Even if the alarm sounded briefly when the battery touched the terminals, you still need to make sure it is snapped securely in place. If the battery is loose, in cannot power the smoke alarm properly. After installing new batteries, be sure to test your smoke detector.
- Your AC power may not be on. AC and AC/DC units will have a power indicator light (red or green) that shines continuously when they are receiving electrical power.
- If you have a 10-Year model, the smoke alarm may not have been properly activated. If the tab broke away before the alarm was activated, you can use a toothpick to move the switch over to test the alarm.
- There may be insufficient battery power, try new batteries.
- Problems with voltage or insufficient electrical power (brown out) may cause a continuous weak sounding alarm. For AC or AC/DC models, temporarily disconnect power at the service panel until the brown out is over. If you do not restore the AC power, your smoke alarms cannot warn you of a fire.
- Incompatible warning device. If an incompatible alarm or auxiliary device is linked into a series of AC or AC/DC smoke alarms it may cause the system inadvertently go off.
- Power Source: Hardwired
- Battery Backup: 10 Year Lithium
- Sensor: Ionization
- Interconnect: Can be linked with up to 18 units (12 Smoke, 6 CO/Heat/Relay)
- Smart Sensing Technology: Helps reduce nuisance alarms
- Noise Output: 85 dB in a T3 Pattern
- Single Button: One press to silence and test alarm
- Easy Installation: Perfect Mount System includes Gasketless Base
- Tamper Resistant: Includes Locking Pins
- Dust Cover: Keeps alarm clean during construction
- Improved UV Resistance: Keeps alarm from discoloring over time
- Standards: UL 217
- Warranty: 10 Year Limited
- Product Dimensions (LxWxH): 5.6 x 1.9 x 5.6 in.
- Product Weight: .6 lbs.
- Smoke particles of varying number and size are produced in all fires. For maximum protection, use both ionization and photoelectric sensing technologies. Ionization alarms are generally more sensitive to fast flaming fires and photoelectric alarms are generally more sensitive to smoldering fires.
If you are interested in ordering a large quantity of items you may qualify for volume pricing discounts. Volume Discount Pricing is a great way for customers to save big on large, bulk orders of most items available in our store. Please send a bulk order request to our friendly sales staff so they may create a quote and provide personal service for your order! You will receive a response within 1-2 business days and our office hours are Monday through Friday, 8am-5pm CST.
- Let us know what products & the quantities you are interested in.
- Get a detailed quote from a dedicated sales rep.
- Our warehouse ships directly to you.
- You enjoy the savings & are now a preferred customer.
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First Alert BRK Brands Hardwired Smoke Alarm with 10-Year Battery Reviews
Received my order on 07/11/2023, Installed 4 Hardwired Smoke Alarm with 10 years battery. One Hardwired Combo Smoke and Carbon Monoxide with 10 years battery on 07/12/2023. Installation process pretty simple and straightforward. Now I have no longer need to replace batteries with every six months. Thank you First Alert product has made better choice for people live easier.
And happened to have same mounting as my old alarms, was direct plug n play!
I have had First Alert alarms in my house w once I bought in 1996. Replacements are always super easy to get. Looking forward to confined business. Thank you!
This alarm solves my problem of replacing batteries every year. I no longer can afford the danger of ladders. The ordering process was very easy and the alarm was received in record time considering the current supply chain issues. Excellent product from a great company. Highly recommend it.
This alarm solves my problem of replacing batteries every year. I no longer can afford the danger of ladders. The ordering process was very easy and the alarm was received in record time considering the current supply chain issues. Excellent product from a great company. Highly recommend it.
We needed to replace all 12 wired smoke detectors in our house and these were a breeze. It took less than 5 minutes per unit and with 10 year batteries, it should be a while before I need to do this again. Thanks First Alert!
Order delivered on time Excellent service
Looking forward to installing these alarms, my old ones are reaching 10 years old. I hope that fit into the origin brackets.
No need to climb ladders again to change batteries every 6 months. Product fitted perfectly on replacement smoke detector brackets.
The First Alert BRK smoke detectors are the perfect solution to my situation. The builder installed smoke detectors that needed 9V battery changed yearly. Some ceilings are cathedral and I am in my 80s and live alone. No one was told the warranty was for 10 years. They began chirping all over the place. That's how we learned their warranty had expired. In searching for replacements we found these which have a 10 yr lithium battery so no yearly battery switch. Very simple to change out as well.