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Tamperproof 10-Year Smoke Alarm

The First Alert Tamperproof 10-Year Smoke Alarm features an extended long-life lithium battery that is warranted to ensure a decade's worth of protection! This effectively translates to ten years of constant and undisturbed coverage. Utilizing an Ionization Sensor, this alarm is especially effective in recognizing smoke brought on by flaming fires. This alarm comes equipped with a Mute Button that serves the dual purpose of quickly silencing your alarm as well as testing its function. This alarm carries a 10-year limited warranty and meets UL217 Standards.

It has been recorded that working smoke alarms can cut the risk of dying in a home fire by up to 50 percent. That's an important statistic to acknowledge as it's been revealed that a home fire occurs every 83 seconds within the United States. It's absolutely essential for homeowners to have access to an alarm that's able to quickly determine the presence of smoke. First Alert Tamperproof 10-Year Smoke Alarms provide 10 years of continuous protection from the many hazards associated with smoke. The inclusion of an increasingly loud 85-decible alarm will alert owners to the presence of smoke and fire danger.

This smoke & fire alarm is for you if: You need to install tamper-resistant alarms that meet local codes for rental properties.You want the convenience of never changing batteries.

Where To Place Safety Smoke Alarms: One in every bedroom, and at least one on every level of the home.First Alert Smoke Alarm SA340CN

* California Residents - Please Note This Alarm is Not Compliant with California State 10 Year Sealed Battery Alarm Legislation Requirements.

What is the proper placement of smoke alarms?
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.
My smoke alarm keeps chirping and beeping. Why does my smoke alarm chirp intermittently?
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.

Why doesn't my smoke alarm sound when I push the test button?
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.
Why does my smoke alarm go off when I install a battery or turn on the AC power?
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.
My smoke alarm keeps chirping, even with a new battery. What is causing this?
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.
I lost my First Alert smoke alarm owner's manual. How can I get a new one?
First Alert smoke alarm owner's manuals are available online for download at no cost. Find your alarm in our Smoke Alarms section.
Why does the National Fire Protection Association (NFPA) recommend that home smoke alarms be replaced after 10 years?
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.

Product Details

Tamperproof 10-Year Smoke Alarm Features:

Product Specs
Smoke Alarms
Product Manuals

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SA340CN customer reviews

Overall Rating

14 Reviews
14 customers recommend this product
Tamperproof 10-Year Smoke Alarm, SA340CN Reviews
Dennis Phillips
June 1, 2017
Verified Purchase

Needed a replacement, it came as promised and was easy to install. Thanks

Edward Hintz
November 3, 2016
Verified Purchase
Great Product

Great Product. No need to worry for ten years and installs easily.

Robert Flowers
June 15, 2015
Verified Purchase
Very Good Product

This is the second time that I purchased the 10 year smoke alarms and have been very happy with the results of the purchase and the quality of the product.

Robert Webber
May 11, 2015
Verified Purchase

Great Product!

Michael Vivian
April 9, 2015
Verified Purchase
Great Service

Order was received when promised and everything was correct. Great job.

Doug Oppelt
November 1, 2013
Verified Purchase
Great product

First time using a 10 year smoke detector. Simple setup, instructions are clear and precise. Low cost and maintenance free. I will purchase more next time for my house.

Mike Kreidler
October 29, 2013
Verified Purchase
Very Good Product

Am using these in employee restrooms due to people smoking in them. It has taken care of issue and being tamper proof is just what was needed.

John Heritage
September 18, 2013
Verified Purchase
Fast delivery

The smoke detector was shipped out and delivered quickly. It was easy to install. Lets hope I never have to actually have it alarm due to a fire.

Sulaiman Aibana
May 6, 2013
Verified Purchase

It takes you few minutes to install with the instructions provided. The best thing I like about this smoke detector is I don’t have to worry about changing batteries for 10 years. While most types last 5 years, this one lasts 10 years. It is a good buy for the price.

Thomas Knowles
April 5, 2013
Verified Purchase
I like the concept.

So far I have not had any problems,guess we will have to wait around for 10 years to find out for sure.

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