First Alert Wireless Interconnect Battery Operated Smoke Alarm With Voice Location Twin Pack - SA511CN2-3ST

Smoke Alarm - 06/30/2014
Reviewer: George Clark
Great product easy to program and install

---

Twin Packs - 06/21/2014
Reviewer: Michael Gridley
Work well, but difficulty linking wirelessly

---

Save a life - 02/25/2014
Reviewer: shawn  flynn
great product

---

- 10/24/2013
Reviewer: HARRY JACKSON
The fire alarms that I ordered are very good and worth the money. The voice is clear to understand,good for children, and they can be linked to each other.

---

Easy Setup - 10/21/2013
Reviewer: Eric Noecker
I purchased these wireless smoke alarms to replace two old alarms in my house. To my surprise, I was able to use the same holes/screws from the previous smoke detectors. Installation for both was literally less than 15 minutes. Although these may seem a bit pricey to some, the peace of mind you get more than makes up for the cost.

---

We feel better now. - 09/23/2013
Reviewer: Ronald Nick
I was amazed at how easy it was to install the alarms. We have an older house with a 27 year old furnace and these alarms will make it easier to sleep every night!

---

- 09/11/2013
Reviewer: Homer Lum
great units easy to use and setup have thru out the house and have tested

---

great price - 07/02/2013
Reviewer: gary mastny
The price to the 2 alarms was much less than I could have purchased at any other locations.

---

Piece of mind is important - 04/30/2013
Reviewer: Walter Hewitt
We have a long sprawling ranch, and if there were a fire at the far end we would not hear a conventional alarm. Now if heaven forbid a fire happens at the other end of the house we will know about it BEFORE half the house is gone!

---

- 08/11/2012
Reviewer: james dessecker
good product

---

Love them - 08/09/2012
Reviewer: Bill Weed
The alarm is very loud and the talking part is good also,Love the idea to Link all units together

---

- 03/06/2012
Reviewer: Ernest  Morgan
Very nice detectors. I would like to see a hardwire master, and all slaves to have 5 year battery in them and this would satisfy code conditions.

---

- 11/16/2011
Reviewer: CHARLES HAGLER
easy to set up

---

very good product - 11/01/2011
Reviewer: Kenneth Silver
I order arrived very promptly and was very easy to set up. There was a dvd with the set which I assume would help with any setup and connectivity with the other units in my home. I like the way that it communicates which alarm detected the problem.

---

great product - 11/01/2011
Reviewer: Seth  Ringheiser
They are wonderful devices and I really like how they talk to eachother and when they talk out loud. It sure does make me feel safer knowing i have them in my house. Thank You seth ringheiser

---

- 08/18/2011
Reviewer: JAMES HOLLOW
All alarms activated during test. Voice a little hurried and could be hard to understand with some people.

---

- 07/23/2011
Reviewer: Catherine Todd
Very easy to set up. I like how the voice alarm tells you which room set off alarm. Bought 2 of them, 1 for basement and 1 for master bedroom.

---

- 06/15/2011
Reviewer: doug costa
easy to install, nice having them talk to each other

---

- 05/31/2011
Reviewer: Daniel Evans
The set-up and installation of these smoke and CO detectors were very simple. I just set all eight 8 units on the kitchen table,with a label next to each unit where I planned to place the devices, then simply went down the line programming each location into the units. By the time I had tested the 8th unit. . .the wail of all eight devices going off was enough to wake up even the soundest sleeper. then set them on the wall/ceiling locations suggested by your instructions. I only hope now, that my wife and I never have need to hear any of the alarms to be sounded, except during the testing times.

---

- 04/21/2011
Reviewer: Robert Martin
very easy to install and set up

Q: What is a mesh network and how do the First Alert Wireless Interconnect smoke detectors intercommunicate?

A: First Alert Wireless Interconnect smoke alarms operate on a "mesh network" to integrate smoke alarms for better safety and response in an emergency. All of the First Alert Wireless Interconnect alarms send, receive and resend the initiating alarm's signal. Why is this important? Let's say the signal is blocked from reaching the master bedroom alarm either by distance or some obstruction in the home. With First Alert Wireless Interconnect, the mesh network of alarms re-routes and re-sends the signal via the other alarms, providing a greater chance all alarms will receive the signal. The "mesh network" is a more reliable means of wireless communication.

---

---

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.

---