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First Alert Basic Battery Operated Smoke Alarm - SA303CN3 (1039796)
Ionization Battery Operated Smoke Detector
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- View Video On This ProductBasic Smoke Alarm
First Alert's Series of Basic Smoke Alarms work exceptionally well in detecting flaming fires. A Mute Button has been included to serve the dual purpose of silencing nuisance alarms brought on by cooking smoke and shower steam. This button also allows you to test the functionality of your alarm. First Alert Basic Alarms are an ideal purchase for those looking for basic fire protection with the option of conveniently muting false alarms. Basic Smoke Alarms also come equipped with an EZ access battery door that removes the hassle and burden of collecting your alarm from the ceiling and replacing its batteries. The combination of a 9v battery and an increased emphasis on the unit's 85db sound output establish peace of mind, while the inclusion of an anti-theft prevention lock all but guarantees the safest of experiences. This alarm carries a 10 year limited warranty and complies with UL217 Standards.
Ionization Sensor Reliably Detects Flaming Fires
The First Alert Basic Battery Operated 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.
Battery-Powered Alarm Installs Easily
This battery-powered smoke detector requires no rewiring and no electrician to install. Simply mount it on a wall or ceiling using the open mounting design. An end-of-life signal will notify you when the detector is nearing expiration.
Test and Silence Button
Mute Button has been included to serve the dual purpose of silencing nuisance alarms and testing the functionality of your alarm.
EZ-Access Battery Door
The addition of an EZ Access Battery Door removes the hassles and burdens associated with changing your alarm's batteries.
First Alert Smoke Alarm SA303CN3
* California and New York Residents - Please note this alarm is not compliant with your State's 10 Year Sealed Battery Alarm Legislation Requirements.
Basic Smoke Alarm Features:
- Mute button, mutes unnecessary alarms immediately. Also tests alarm function with same button.
- EZ access battery door, no need to remove alarm from ceiling to change battery.
- Optional theft-prevention lock when activated, batteries and/or alarm cannot be removed without proper tools.
- Ionization smoke sensor, optimal smoke detection from flaming fires.
- 9v battery included.
- Loud 85db alarm.
- 10 year limited warranty.
- Meets UL217 standards.
- Emits T3 Pattern.
- Product Dimensions (LxWxH): 4.34 x 4.34 x 1.9 in.
Product Specs
UPC:
029054018724
MPN:
1039796
Write A Customer Review 
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5
Average score based on 36 reviews
Easy to install
Reviewed: 04/11/2019 by LINDA DAVIDSON
The smoke alarms arrived quickly in the mail and were very easy to install. They also came with a battery which saved me time from having to go purchase one. Very satisfied with the product
First alert smoke alarm
Reviewed: 04/09/2019 by William Paris
Very easy to install. No need to take down smoke alarm. Like the front load battery especially.
Replacement detectors
Reviewed: 04/03/2019 by John Zamzow
I bought this model to replace my out of date detectors. Simple to install and the locking pin at first threw me for a loop but I figured it out and is snap to use.
Just what I needed
Reviewed: 02/15/2019 by JR
Easy to install. I like the battery door, it makes it very easy to change the battery.
Great little alarm!
Reviewed: 01/28/2019 by Jola Harvel
We really like this alarm. This is our second one. The first one died after several years so we decided to replace it with an identical one so we didn't have to install the bracket again. The price is reasonable on it, too.
Replacements
Reviewed: 12/24/2018 by michael sedillo
Replacing alarms in whole house originals worked perfect new ones retrofit perfectly
excellent products & service
Reviewed: 11/26/2018 by Vipul Patel
Look forward to more business with you.
Basic works
Reviewed: 10/22/2018 by Carla Kuebler
Basic alarm that easily replaced my current alarm that was over 15 years old. Easy installation, no issues - great that batter was included!
Owner
Reviewed: 04/11/2018 by Vivian Sickman
Very loud and clear. I was really happy to see batteries included.
smoke alarm - battery
Reviewed: 03/19/2018 by John La Duke
Clear instructions. Easy to install
Quick and easy
Reviewed: 03/09/2018 by Stacy Link
Product arrived when expected and in good condition. Easy ordering process. Will use these guys again!
first alert smoke detector
Reviewed: 01/13/2018 by timothy oakley
I've always trusted first alert products I also have their fire extinguishers. They are my opinion the only ones to buy. Very happy customer !!!
Reviewed: 12/18/2017 by Peter Ravel
Good value for the price
Smoke Alarm
Reviewed: 12/11/2017 by jerry maass
This is a basic smoke alarm but should be able to give a warning.
Safety
Reviewed: 12/11/2017 by jerry maass
It is a very good idea to have these to warn you of a need to break out the fire extinguisher. They both are cheap insurance.
Q: How often do you need to change the batteries?
A: Actual battery service life depends on the particular design of your smoke or carbon monoxide alarm and the environment in which it is installed. All kinds of alarm batteries specified in the user's manual are acceptable replacement batteries. Regardless of the manufacturer's suggested battery life, you MUST replace the batteries immediately once the unit starts "chirping" (the "low battery warning"). It is recommended that you change the batteries in your alarms when you change your clocks for daylight saving time. Also consider replacing your current alarms with 10-Year Life Alarms that never require a costly battery replacement for the ten year life of the alarm. This 10-Year series is available in smoke, carbon monoxide and combination 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: My smoke alarm keeps chirping and beeping. Why does my smoke alarm chirp intermittently?
A: It is likely that the reason your smoke alarm keeps chirping and beeping is that the battery is low. Whenever your smoke alarm keeps chirping, replace the battery immediately.
Other reasons include: It could be a different device or appliance such as a security system, monitor, carbon monoxide alarm, or other device which has a similar low battery or alert signal. Some of the same factors that cause unwanted alarms can cause intermittent alarms: dust and insects in the alarm or power interruptions in hardwired alarms. Improper wiring on AC or AC/DC smoke alarms. AC alarms will chirp every 5 seconds if the interconnect wire is grounded. The orange interconnect wire should NEVER be grounded; it should only be used to interconnect other smoke alarms or compatible devices.
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:
- 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.
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:
- 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.
Q: My smoke alarm keeps chirping, even with a new battery. What is causing this?
A: There are a number of possible causes for your smoke alarm to keep chirping even with a new battery.
- It is possible that your smoke alarm "silence" button was pushed by mistake. The alarm will now "chirp" once a minute for up to 15 minutes before resetting.
- Are you sure it's the smoke alarm? Funny to ask, but other devices have similar low battery chirps or warning tones.
- Your "new" batteries may not be fresh. If batteries are stored, especially in cold areas like refrigerators, they lose their charge more quickly. Always check the freshness date on the package when buying new batteries. Keep plenty of replacement batteries on hand so that you are sure to always be protected by your smoke alarms.
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.
If it's time to replace your alarms, consider the NEW 10-Year Life series and never have to worry about a battery replacement for the life of the alarm.10-Year alarms are available in smoke,carbon monoxide and combination alarms.
If it's time to replace your alarms, consider the NEW 10-Year Life series and never have to worry about a battery replacement for the life of the alarm.10-Year alarms are available in smoke,carbon monoxide and combination alarms.
Q: I'm ready to change my alarm battery - what replacement batteries can I use?
A: Check your User's Manual or the nameplate on the back of the alarm. Different smoke detectors & CO alarms use different kinds of batteries - 9V, AA, AAA - it all depends on the particular model you have. Use quality batteries like lithium batteries - having plenty of power is worth any extra cost. Never use rechargeable batteries because they may not always provide a consistent charge.
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.
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