This First Alert SA511B is a Battery operated Photoelectric smoke detector with Wireless Interconnect. This alarm will wirelessly interconnect with other alarms in the same series (SCO500B, SA520B & CO511B). If you need to link together a hardwired system with these Wireless Interconnect alarms, you will need to get the SA521CN(SA520B) to use as a bridge unit.
First Alert Wireless Interconnect allows alarm interconnection without hardwiring. When one alarm activates, all alarms will be activated. You can easily link alarms together with the press of a button (see video below). The Photoelectric smoke sensor reduces nuisance alarms from cooking smoke or shower steam. Easy access battery drawer: no need to remove alarm from ceiling to change battery. 10-year limited warranty. Meets UL standards.
Wireless Interconnect enabled alarm
Exclusive! Voice alarm with programmable location. Programmable with up to eleven locations.
Single button test/silence
Two silence features – can silence the low-battery chirp for up to eight hours or temporarily silence an unwanted nuisance alarm
RF Interconnect: reliable and secure radio frequency communication between alarms. 915 MHz frequency with 65,000 security codes and 3 channel frequency hopping.
Optipath 360 TechnologyTM – patented technology provides 360 degrees of direct access to the smoke sensor.
Perfect Mount – allows for easy alignment of alarm
Spread Spectrum Horn Tone – Lower and varying frequency makes it easier for the elderly with normal aged related hearing loss to hear the horn.
Latching Features: Alarm Latch – remembers which unit initiated an alarm. Low Battery Latch: Visually indentifies unit in low battery condition.
10-Years Limited Warranty
Model # SA511B
Weight 8.3 oz
Operating Voltage Two 1.5V AA Batteries
Humidity Range 10% to 90% relative humidity (RH)
Smoke Sensor Photoelectric
Listing ETL to UL 217 standard
Mike F. –
Was recommended by Chris together with SCO501CN-3ST. I’ve had two a couple of weeks and they seems to work great.
Purchased these smoke only to augment my existing combination detectors.
I’ve relied on First Alert alarms for decades, and they continue to become more sophisticated. This one was delivered promptly: a good product for a good price.
See the comments within the above paragraph: Very good and responsive product. However, it is difficult to understand how to make the wireless communication aspect of this product work. And, there should be a method developed which allows a testing of the unit without having to find a fire or carbon monoxide source. And, since I purchased two combo alarms, and two single alarms, not sure if all 4 will to communicate (in wireless mode) in combination.
Jacqueline Tomlinson –
They ship the unit fairly quickly and it arrived in good working order. I did not have any trouble programming it to the other unit so they function together in case an alarm goes of.All in all a good shopping experience
jeff kenaston –
With some very helpful ideas (program all units at the same before installing) from a great company “Smokealert” I am very pleased with ordering and installation.
After much searching for a single wireless battery op smoke detector to add to the other two in my house, I finally found this supplier. Shipped fast through Amazon and works perfect with other units.
Susan M Roth –
Don’t know . The city firefighters were out yesterday to install. They couldn’t get these to “talk” to each other. Supposedly 2 replacements are on the way?
Allen Wolf –
Great to be able to identify which room the emergency is coming from. Critical if you have young children in the house. This is the only wireless unit I know of where you can connect them all so that the alarm will sound in every room of the house but you know where the emergency is by voice.
Looks like a regular smoke alarm and seems to be great but has the awesome bonus of connecting wirelessly to our others. Great way to keep the whole house safe!
marilyn thompson –
The service was excellent and prompt.
Margaret Rick –
Daniel MacDonald –
For all of the purchases I would not think of going to any other outlet for these items. SmokeAlert’s employees provide the best advice and expert designs to ensure I get what I need without overspending. Can’t find this kind of customer service anywhere,..
Edward Eldridge –
Easy to connect with other types of detectors
Important to follow the instructions when setting these up. Installed 5. They are loud when you are setting them up so you may want to remove small children and pets from area. Feel safe with these now.
Ken Lee –
Sale was first class all the way. Thanks
ted g –
Ordered another wireless interconnected alarm to complete coverage in my home. Shipping was fast. Very happy with your site.
jorge rodriguez –
Truly appreciate betting able to find the Oberlin, works great.
Website is very user friendly,
JOSE GOUVEIA –
the best choice in cost-benefit analysis.
Excellent quality, easy setup, interconnect works fine.
Andrew Petro –
Interconnecting units is difficult. Service rep was very knowledgable but even after multiple attempts we could not link the units. I had to go to a remote location, without interfering electronics to connect the units. Still not sure if all are connected.
They setup easily, and seem to work on the bench, but I tested with real smoke from a burning paper, (blown out), and it seemed to take awhile for the alarm to go off! I guess I have to wait for a real fire to see if they will work right! I had the smoke go right into all the vents on the detector!
Dwight Scoles –
The fact that these alarms talk to each other and have locations is a real plus since we have 10 locations in our house.
James Bachert –
Timely shipment and 100% as ordered.
The Item was as described and in good condition. The free shipping was reasonably timely. I am going to buy from them again.
Barny Bolts –
First time shopping at Smoke Alert, and made the choice to buy from them due to the support info on their website, and for best price in the item category. Was further impressed with the quick turn-around, Priority Mail shipping included in the price!
LEE KLEIN –
Great product. Smoke alert was a pleasure to deal with.
Order was processed and shipped promptly. Price was the lowest I could find. What more could you ask for?
Easy to use your web site, delivered early, and the product was exactly as ordered (even included batteries). Thank you!
cheaper than amazon!
I added this smoke detector to my mother’s home that has two of the same model (installed a year ago). The new one easily linked with the other two. When one alarm goes off, the others sound off also. The horn tone is such that my mother can hear them without her hearing aids.
thanks to Smoke Alert I found the two types I needed which are great! they are voice prompt very loud & easy access to the battery
Robert Lavisky –
This product is sold by a company that is owned and operated by professional firemen, so they must know which is the best smoke alarm to have in your home. They’re cheaper than Amazon & Lowes also.
This company is one of the most efficient organizations I have done business with.
They also stock some hard to find units that you wont find in a big box store. Price is good too.
Donald Walker –
This is the best smoke detector/alarm for the price, and SmokeAlert is the best place to buy it. Recent studies have shown photoelectric detectors are significantly better detectors than ionization ones at providing early warning for both smoldering and raging fires (ionization may detect raging fires up to 90 seconds sooner, but terrible at detecting smoldering fires). It has been recommended that ionizing detectors be replaced by these type of detectors. I agree. That is why I have replaced all the detectors in my home.
Richelle Sterling –
Very reasonable and I tried other sites that weren’t or was sold out. Glad I was able to find this site
Desiree First –
Some of the best customer service I have ever experienced along with great alarms. We love that they talk and all alarm together. Very easy to install. If we ever need more we will order here.
Ned Drolet –
The unit deserves 5 stars BUT the User’s Manual deserve 1 star. At the bottom of page 1 in LARGE print add ” See Top of next page to link units wireless!”. Also, certainly the 800 number could be smaller and far more difficult to find said the jester!!! Once the phone number was found and your customer service department reached the day was saved. Your service reps were great!!!
C.R. Lewis –
This smoke alarm in particular was also recommended by Wirecutter an online Consumer Reports guide. When I found that SmokeAlert not only reccommended as well but had the best price online I bought the four units I needed here. Quick shipping, great price, well recommended – I’m pleased with my purchase! Bought three additional smoke/C02 devices for each floor of my home to pair with these four smoke only alarms.
Bob A –
great item and love how it connects to other alarms in the house, including the CO2 alarm. the only problem i have is that the voice is not 100% clear. it would be nice to have a customized location – but i understand that.
tom mcneil –
excellent smoke detectors just replacing mine because of age. Excellent price also
Really happy that they had the correct detector I needed and shipped quickly too.
David Newlon –
Recieved my order faster than a big-box hardware store could ship the same, normally stocked item.
Detectors worked as advertised. Will probably buy more of the same.
Haley Brueck –
There was an issue with the delivery of our product and Smoke Alert fixed it!