Smoke Alarm w/ Smart Sensing Technology and Nuisance Resistance
The First Alert Smoke Alarm with Smart Sensing Technology and Nuisance Resistance utilizes two differing technologies to achieve the maximum in reassurance. Capable of quickly deciphering between flaming and smoldering fires, this alarm is equipped with dual photoelectric and ionization smoke sensing technologies. Fast flaming fires spread quickly and leave minutes, maybe seconds, to react. Smoldering fires burn long and can unknowingly fill the home with smoke causing smoke inhalation. The SA320CN's smart sensing microchip helps determine the difference between non-threatening conditions and real emergencies.
This alarm comes equipped with a Mute Button that serves the dual purpose of quickly silencing your alarm as well as testing its function. The addition of an EZ access battery door removes the hassle and burden of collecting your alarm from the ceiling and replacing its batteries. While all smoke alarms are designed to detect smoke, different sensing technologies react differently to certain types of fires. This alarm makes use of both ionization and photoelectric sensors to offer the earliest possible warning, regardless of the type of fire. This alarm comes with a 10-year limited warranty and meets UL217 Standards.
First Alert Smoke Alarm SA320CN
Smoke Alarm w/ Smart Sensing Technology and Nuisance Resistance Features:
- Dual smoke sensors, dual photoelectric and ionization smoke sensing technologies for optimal sensing of smoke particles produced in both flaming and smoldering fires.
- Smart sensor, helps recognize the difference between non-threatening conditions and real emergencies.
- 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.
- Two AA batteries included.
- Loud 85db alarm.
- 10-year limited warranty, smoke alarms should be replaced every 10 years for maximum protection.
- Meets UL217 standard for dual sensor home smoke detectors.
- Emits T3 Pattern.
Ionization smoke alarms are more sensitive at sensing small particles, which tend to be produced in greater amounts by hot, flaming fires, that are consuming combustible materials rapidly and may spread quickly.
Photoelectric smoke alarms are generally more sensitive at sensing large smoke particles, which tend to be produced in greater amounts by smoldering fires, which may smolder for hours before bursting into flame.
For maximum protection and full coverage from all types of fires, your best option is to use an smoke alarm that features both photoelectric and ionization sensing technologies.
Review this product
average customer rating based on 36 reviews
Great replacement - 01/29/2015
Reviewer: W F Nicholson
Replaced my old first alert smoke detector. Easily done. Hopefully, I will be as satisfied with this replacement that used the same footprint after more than 10 years.
Excellent - - 11/11/2014
Price was competitive. Delivery was quick. Item arrived exactly as described and what we wanted for the home. So far, it works and no issues.
Great Product - 05/08/2014
Reviewer: Frank Stowers
Great product and fine service. Is a replacement for an older First Alert alarm. Shipment arrived promptly and in good shape. Alarm installed easily, within minutes. Is definitely an improvement in technology over the alarm it replaces.
Alarm is easy to install. - 03/31/2014
Reviewer: Diane Carr
My husband isnt handy but no problem putting these up.
Smoke Alarm for Boat - 03/11/2014
Reviewer: Marvin Raber
Competitive battery powered smoke alarm with dual sensors. Good choice for boat.
I feel double safe - 01/23/2014
Reviewer: Robert Schleck
I know i feel very safe with my new smoke protector
Reviewer: nick domiano
Happy to get and find the dual acting sensor alarms. All alarms should be sold this way.Replaced four alarms that were out of date and need to buy one more.
Dual sensor alarms - 12/04/2013
Reviewer: Peter Long Jr
So far, so good. I had looked for a dual sensor, battery powered alarm without other features ie CO, voice, etc. I found these and the price was right they were delivered promptly, tested well, and are now installed. Have not had any alarms or false alarms. And the real test is detecting and alarming with a real fire. But the prognosis is good.
Sleep with both eyes closed - 11/04/2013
Reviewer: Thomas Langevin
Have wanted to upgrade to dual sensors for a long time. Glad these have become so affordable. Excellent quality!
Solid Product - 10/23/2013
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Reviewer: Allan Goldberg
Replaced two 13 year old detectors that had only ionization detectors. Altho these had a different base, the screw positions were identical to the old ones so no new holes had to be drilled. Nuisance resistance seems to work burned toast would have set off the old one, but didnt on this.
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.
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.
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