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Loading...Loading...Loading...Loading...Loading...4 out of 5 stars by Jun 25, 2022 Works as AdvertisedWorks as claimed. Easy to install a new back-up battery, but battery compartment latch is somewhat difficult to open -- no marking on exterior. Took a few minutes to figure out how to release latch.and that battery compartment swings open on a hinge. Used to replace a faulty unit. .Had no trouble connecting wiring plug to new unit and then fasting unit to base on ceiling with twist-lock connection. Verified purchase: Yes | Condition: New Excellent product, excellent priceThese were replacements. We have had this type of smoke alarm for years. I like this product. Verified purchase: Yes | Condition: New Easy replacementJust inserted battery and good to go. Verified purchase: Yes | Condition: New Correct product-needs better packagingThe product was what I ordered but it needed to come in a box and not an envelope for all 3 boxes were smashed and wont know if they are defective until installed next week. Verified purchase: Yes | Condition: New 5 out of 5 stars by ron7621Nov 12, 2019 They are a perfect match works fine.Thanks for your outstanding website it was very user friendly my package was delivered within 3 days I will be recommending this to my friends. Verified purchase: Yes | Condition: New Ionization Wired In Smoke Detector Availability: In Stock To be notified when this item is back In Stock, please enter your Email Address below:
Hardwired Smoke Alarm with Battery Backup:Designed to help promote household safety, the First Alert 9120B Hardwired Smoke Alarm with Battery Backup can provide a vital early warning of fire. This hardwired smoke detector uses an ionization smoke sensor to reliably detect smoke from hot, fast-flaming fires. Ionization Sensor Reliably Detects Flaming Fires The First Alert 9120B 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. Gasket-less for Easy Installation To facilitate hassle-free installation, this smoke alarm features a streamlined mounting system with a gasket-less base. The mounting bracket keeps the alarm secure over a wide rotation range while maintaining perfect alignment. The alarm also comes with a dust cover to keep the unit clean during construction. AC-powered smoke alarms must be installed in accordance with all local electrical codes. Battery Backup for Detection During a Power Outage This smoke alarm is designed for hardwired installation, but it also features a battery backup that helps ensure continued functionality in the event of a power outage. The unit comes with a 9-volt battery and features a pivoting, easy-to-access battery drawer that allows you to replace the battery without dismounting the alarm. Works in Tandem with Other First Alert Alarms 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. First Alert Smoke Alarm 9120B Recommended replacement for the following obsolete models: BRK 4120B
How to Install First Alert 9120B 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:
Connecting First Alert Hardwired Alarms to 120V WiringTo begin, turn off power at the junction box and connect your alarm to the building's electrical wiring.
Mounting First Alert Hardwired Alarms
Installing Additional and/or Interconnecting First Alert Hardwired AlarmsIf 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:
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 AlarmsOnce 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:
Q: What is the proper placement of smoke alarms? A: It is important that you have the proper placement for your smoke alarms. Install your alarms at least 20 feet from appliances like furnaces and ovens, which produce combustion particles. Alarms should be at least 10 feet from high humidity areas like showers and laundry rooms, and at least 3 feet from heat/AC vents. Be sure to install a smoke alarm in each bedroom, one at the top of each stairwell, and one on every level. Q: Why doesn't my smoke alarm sound when I push the test button? A: It is important that you frequently test your smoke alarms. When you are testing your smoke alarm, there are a number of reasons why the alarm might not sound:
Q: Why does my smoke alarm go off when I install a battery or turn on the AC power? A: It is normal for smoke alarms to go off and sound briefly (up to 5-10 seconds) when you install a new battery or when they are powered up. If the alarm continues to go off and no smoke is present, the cause may be one of the following:
Q: I lost my First Alert smoke alarm owner's manual. How can I get a new one? A: First Alert smoke alarm owner's manuals are available online for download at no cost. Find your alarm in our Smoke Alarms section. Q: Why does the National Fire Protection Association (NFPA) recommend that home smoke alarms be replaced after 10 years? A: Smoke alarms have a limited life. Although each smoke alarm and all of its parts have passed many stringent tests and are designed to be as reliable as possible, any of these parts could fail over time. Therefore, you must test the devices weekly. The unit should be replaced immediately if it is not operating properly. The performance of smoke alarms older than 10 years is simply not reliable. To ensure your family's safety, all carbon monoxide and smoke/CO combination alarms need to be replaced every 5-7 years. All smoke alarms need to be replaced every 10 years.
First Alert 9120B Hardwired Smoke Alarm with Battery Backup Videos 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.
Customer ReviewsFirst Alert 9120B Hardwired Smoke Alarm with Battery Backup Reviews View More Reviews... How long does the First Alert model SC9120B last?Product: SC9120B. Why Replace Smoke Alarms Every 10 Years? Learn why the NFPA recommends that smoke alarms be replaced every 10 years (at least). Learn how to tell if the old alarms in your home are still protecting you.
What is the difference between SC9120B and 9120b?A: The sc9120b is for smoke and carbon monoxide detection the 9120b is just for smoke detection.
How do I stop my First Alert smoke detector from beeping?Clear Residual Charge to Stop the Chirp
Open the cover and take out the battery. Press and hold the test button for 15-30 seconds. This will fully reset the smoke alarm and drain any charge left inside.
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First alert smoke and carbon monoxide alarm model no sc9120b
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