First Alert SA511CN2-3ST ONELINK Battery Operated Smoke Alarm with Voice Location, 2-Pack

by First Alert

Product Description

From the Manufacturer

In the event of a fire every second counts. If a fire were to begin in your basement and the alarm there sounded, you may not hear it right away if you're sound asleep two floors up. With traditional battery-operated alarms, you lose valuable time waiting for the smoke to rise to another alarm, on another level, before the alarm on your floor sounds. But with First Alert ONELINK alarms, if one detects danger, they all sound. This can alert you sooner, and it increases your chances of getting out safely. Until now, alarms that could signal each other were only available in homes with hardwired alarms requiring installation from an electrician. But First Alert ONELINK alarms communicate without wires. ONE Link-with Voice Location Smoke alarm is programmable with up to 11 locations in your home - when alarm sounds it will tell you the location of the smoke. The wireless feature allows multiple alarms to talk to each other - when one alarm sounds, they all sound. The wireless network operates on 914 MHZ 3 channels and will not interfere with other electronics. The ONELINK smoke alarms uses photoelectric sensing technology which is environmentally friendlier and which reduces nuisance alarms, making it ideal for cooking areas. It is also great for sensing slow smoldering fires quickly. A low battery signal alerts you to replace the battery. The test/silence button both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality. The AA batteries are easy to install in the convenient pullout battery drawer. Two AA batteries included.

Product Details

Smoke Sensing Technologies Information [46kb PDF]

• Shipping Weight: 1.4 pounds (View shipping rates and policies)
• Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
• ASIN: B000YC535Q
• Item model number: SA511CN2-3ST
• Average Customer Review: 3.8 out of 5 stars  See all reviews (29 customer reviews)
• Amazon Best Sellers Rank: #4,581 in Home Improvement (See Top 100 in Home Improvement)
  • #28 in Home Improvement > Safety & Security > Fire Safety > Smoke Alarms

Customer Reviews

Most Helpful Customer Reviews

16 of 16 people found the following review helpful:

5.0 out of 5 stars Good Item, Good Features, and Great Customer Service, August 3, 2009

By 

Homer123 "Homer" (Somewhere USA) - See all my reviews

This review is from: First Alert SA511CN2-3ST ONELINK Battery Operated Smoke Alarm with Voice Location, 2-Pack (Tools & Home Improvement)

At about 2:30 one morning I awoke to the faint sound of a smoke alarm beeping in my infant daughters room. To my suprise neither my wife, nor my daughter were awaken by the contiunous high-pitch whine of the 5 dollar smoke detector. Honestly, I don't know how long it had been alarming before I awoke. Fortunately it was a false alarm triggerd by a humidifier.

A few short days later (prime shipping) my new First Alert OneLink units arrived - I'd suggest buying 6 for a good size house and to make sure they are all in range to set each other off. They work on a mesh-type network, so when one receives a signal from the alarming unit, it will re-transmit the alarm again so any units out of range of the first unit also get the signal to alarm. It works well.

Setup is simple and the included mounts make it easy to hang them on the wall or ceiling. The first time I pressed the test button I knew NOBODY was going to sleep through an alarm.

About 6 months later I was proven correct. Something triggered one of the units - naturally it was in the middle of the night when we were asleep. All of them starting alarming (and yelling "evacuate! evacuate! smoke in basement"). They are LOUD. I'd suggest setting them off when your spouse is asleep and watching their reaction. Have some clean undies for them to change into afterwards.

The same unit did false alarm a few more times, and First Alert was quick to send me a replacement... They didn't hassle me for the box, receipt, or make me go through hoops to get a replacement. The (obviously USA based) phone representative sent me out a new one asap. It was the best customer service I've experienced in a long time.

If you don't have hard-wired alarms in your house, get these... don't be cheap.

13 of 13 people found the following review helpful:

1.0 out of 5 stars battery eaters and random alarms for no reason, October 10, 2009

By 

A. F. Nazar "theothermaine" (Wilton, ME USA) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: First Alert SA511CN2-3ST ONELINK Battery Operated Smoke Alarm with Voice Location, 2-Pack (Tools & Home Improvement)

Since installing these smoke detectors a year ago, I have had to install three complete sets of Energizer batteries, replace one detector that ate a set of batteries every two weeks, and pull all the detectors tonight because I need to install a fourth set of Energizers. I buy the batteries fresh with a four or five year code each time so that is NOT the problem. It is obvious that changing batteries every six months is NOT a good plan unless you enjoy being awakened at 2AM every month or two with a low battery warning.

two years later - I've had two of the remaining 5 (I already tossed out two) begin to sound with no reason. Batteries were good, we are non-smokers have no fires going inside or out - they just sounded off about a week apart. I'm down to 3 now. They also do not communicate through ordinary sheetrocked inside walls. I will replace them with another brand.

I would not recommend them to anyone for anything.

8 of 8 people found the following review helpful:

5.0 out of 5 stars pricey but works good, June 9, 2008

By 

D "D" (United States) - See all my reviews

Amazon Verified Purchase

This review is from: First Alert SA511CN2-3ST ONELINK Battery Operated Smoke Alarm with Voice Location, 2-Pack (Tools & Home Improvement)

I have a multi story house and wanted more protection and to know if there is smoke on another floor. These comunicate very well, They are a little hard to set up, it took multiple times before we were able to get them to talk to each other.. Don't loose your instruction sheet! you have to do it every time you change batteries.