It is very easy to replace. The smoke alarm arrived very quick, and was easy to install. Great Experience with the entire order process. Done. Great deal! New unit stopped the problem. I will order a couple more for back ups. Reasonably priced and prompt delivery! Never had a problem with my other expired units. No more false alarms or midnight beeps. If the battery is loose, in cannot power the smoke alarm properly. I ordered three 9120B ionization smoke alarms from firstalertstore.com. Quick service, Reviewed: 12/17/2019 by Kassandra Hernandez. I had a great experience with First Alert Store. Reviewed: 09/17/2019 by Melida McLenan-Kenny. A screwdriver and step stool were all that we needed to do the job. Received the package earlier than expected. After checking several local retail stores and not finding an alarm like the one I had, I found the exact model online at First Alert. $47.00 $ 47. No more late night chirping and false alarms! The product arrived quickly and with the straight forward instructions, I was able to replace them easily with no prior experience of switching out hardwired fire alarms. We had 1 go bad and ordered this one which is the newer model of the rest of the house. Easy to order, to install, good price, and quality product. I purchased this as a replacement to an original alarm which was damaged. Items arrived quickly and was exactly what I ordered. After installing new batteries, be sure to test your smoke detector. It contained the battery which surprised me, and the alarm manufacturing date was current. Have not had any issues with these. Good price - very easy to install and works great. This connected perfectly to our system. I needed to replace my old smoke detectors. Just unplug the old, plug in the new, and fit it on the existing ceiling plate. The Fire Department for detailed fire protection requirements in buildings not defined as Alarm Models 9120B, SC6120B, SC9120B, 7010B, SC7010B, SC7010BV, 100S, 4120, … Only small hassle was mounting ring was a different diameter than the old ones but that is an easy problem to get past... 2 screws, half twist and it's done. They were an exact replacement and I could use the existing electrical terminals that were already wired into my house. I was replacing a faulty smoke detector in my house, and was disappointed with how boring this was to replace. Received items quickly and at a lower price than Lowes. Very good company to buy from. Thank you. 9120 Series - "The smoke alarm standard of excellence." Very happy with the purchase. It was time to replace all of my dated systems. They were shipped very quickly by USPS Priority Mail. Same alarm still available which made an easy replacement. Easy as could be! Installed by me in just a few minutes. Order was received earlier than I expected it and units excellent quality. Thanks! Your AC power may not be on. Plugged into old wiring harness with no problem. Product arrived less than a week later. The item was the exact replacement as need. If you are installing more smoke or carbon monoxide alarms, you'll want to repeat the process throughout the building. Once you've installed your hardwired alarms, you'll want to restore power to the junction box. This smoke alarm works great and with all others in the house. Had my original First Alert smoke alarms for 10 years so it was time to replace them, these worked perfect, very happy! Battery Type: 9V (Nine volt) Location: CO400 / CO400B . PURCHASED THE 9120B IN AUGUST 2020. Standalone (single-station) alarm: This wire is not needed; tuck the orange wire into the junction box. This item was a replacement for one that went bad in my home. Great customer service to a loyal customer. Replaced for upgrade, seven, 22 year old, Hardwired First Alert Smoke Detectors. The alarms were as I had ordered and, although they have not alarmed I believe they will function properly. Placed a second order a week later and also received them within a week. Very quiet. Just be sure the power is off at the unit before changing the plug in wiring!!! I am very happy with this unit because it's both hard wired and comes with battery backup. It went into place exactly as the original. Very happy I didn't have to figure bout rewiring!! I ordered from the First Alert store fast shipping. Repeat this process to test each alarm in the interconnected series. Very pleased with the product, hooked them up and they work great Thanks. I was worried because I needed to replace my older smoke alarm but didn't want the added expense of potentially hiring an electrician to rewire and refit units. They are a good, reliable product. Boxes were smashed. First Alert 9120B Smoke Detector. In contrast, a battery-operated smoke detector will be … It could be as quick as 5 minutes a unit including some time to confirm power leds are on and test it. Reviewed: 01/01/2019 by Rohan Seneviratne. Bought this to replace a bad one, fast shipping and product works wonderfuly! Arrived in good time. Installed with hard wired system. I was very satisfied with the product, price and service. I've installed the alarms and so far no problems. They were the same brand and they served me well they were still working before they were replaced. Planned obsolescence, have a unit that is 15yr old found exact replacement for great price and delivery all good. Reviewed: 04/20/2020 by SteveAnna Williams, Got my order in a timely manner and will order from them again. I purchased these as replacements that were installed in my new construction home. Fast and simple. Excellent product, received in a timely manner. Replaced my 13 year old smoke alarms with First Alert units. Great customer service. Saved 30% compared to retail and delivered for free to my door. A perfect fit. Plans to review other products for purchase in near future. The installation was easy. The electrical box had wires in it but they had never been stripped. Their price was 20 % of the price at Lowes and their service was fast and seamless. This smoke alarm is designed for hardwired installation, but it also features a battery backup that helps ensure continued functionality in the event of a power outage. I was very pleased that the smoke alarms came with the 9-volt batteries. They have always performed good. Its a good system. I was looking for this products at a store, couldn't find it. I just twisted the old one off the mounting plate and disconnected a connector and then reconnected the new unit and twisted it into the existing mounting plate. Great service and product. Works perfectly when tested. It took about 45 minutes to do the entire job slowly and deliberately, and the new units are operating perfectly. Hardwired Smoke or Carbon Monoxide Alarm Requirements: To begin, turn off power at the junction box and connect your alarm to the building's electrical wiring. I am fully satisfied. I BROKE THE LATCH CHANGING ONE OF THE BATTERIES AND WAS THRILLED THAT THE NEW UNIT WITH AN EASIER BATTERY LATCH COULD BE PLUGGED RIGHT INTO THE OLD WIRING. First Alert had just what we needed. These units did replace a previous model 4120B and the interconnection worked very well. This alarm system have not let me down in no emergency situation. Reviewed: 12/10/2019 by raymond brandenburg. 8 units done in 30 minutes no problems! LED Light Indicators on First Alert Alarms; How to Change Batteries in First Alert Alarms; How to Stop False or Nuisance Smoke Alarms; Need more help? Was able to replace all of my original smoke alarms with the same identical models after 12 years. Nice buying from this website. We built our home 6 years ago and one of the hard wired smoke detectors went bad. I am very impressed with the ease of ordering along with the quickest that I receive my order and it is accurate each time. All items arrived quickly - easy install and came with batteries- surprised. Very easy to install! Different model, same brand and of course it look the same. Price was good and item arrived right on time and as promised.Good and reliable product. Great value, exactly what I wanted. Shop First Alert BRK 3-Pack AC Hardwired 120-Volt Smoke Detector in the Smoke Detectors department at Lowe's.com. Product Dimensions (LxWxH): 5.6 x 1.9 x 5.6 in. They have worked well since we moved in, and since the house was built in 2007, I figured it was time to replace them. Must have timed out. 120V AC power with 9V battery backup (included) to keep alarm functioning during power outage. Product works well. I was assured they would plug in the the hard wires without any problem. I have not completed the install. Ordered to replace older than 10 yrs in my house they where in it when I bought it. Love it! Had all replaced in about 20 min. Weather Alert Model# SFA1180 $ 64 01 $ 64 01. Would do this again. No need to mess with the wiring which was great. Very good price for six detectors. Reviewed: 03/12/2019 by Gerald Lomashewich. We needed to replace a 9120B and the first alert store was the least expensive place I found. The new one arrived quickly, packaged well and I was able to plug it in without replacing the base. I had a smoke detector that kept chirping. I ordered the ones I needed and installation was a breeze. Try holding it down for up to 10 seconds (20 seconds on photoelectric models) . Ordered replacement smoke detector for my condo from First Alert. Pleasantly surprised that batteries were included. it's ok though as the hardwire supplies the power, not the battery. First Alert Hardwired Smoke Alarm with Battery Backup - 9120B. First Alert is not my FIRST choice. If the tab broke away before the alarm was activated, you can use a toothpick to move the switch over to test the alarm. I hope so. The low battery chirp doesn't stop even with a new battery. Volume Discount Pricing is a great way for customers to save big on large, bulk orders of most items available in our store. Problems with voltage or insufficient electrical power (brown out) may cause a continuous weak sounding alarm. Reviewed: 05/21/2020 by Virginia Rapplean. Order was exactly what I expected it's working fine great price. Easy to replace those with loosening of 2 screws. Thanks! Price and delivery was excellent from the First Alert Store. Great product and very good price. Replaced 6 alarms. Quick delivery and super easy install. Works great, easy installation for a 10 year old replacement. Reviewed: 01/03/2018 by Patrick S Amello Sr. the best Power On ?. In addition to functioning independently, this smoke alarm can also integrate with up to 12 other First Alert or BRK hardwired alarms for coverage of larger spaces. It arrives quickly and shipping was free. Came with all the parts needed. Q: I lost my First Alert smoke alarm owner's manual. and my house is up to date for another 10 years. Instructions very clear. Very pleased with first alert. The new unit installed without a hitch and seems to function properly. Your website made it easy and convenient to order the proper unit. I had an 18-year old smoke detector and called the store with the model number. 1036142, 1036154, 1039808, 9120B, 9120AB, 9120B-12ST, 9120B-48B, 9120B-48P, 9120B-WWG, 9120B6CP, 9120B6CP-1, 9120BFF, 9120BP-12ST, 9120LBL, 9120BLBLFF, SA9120BCN, SA9120BPCN, SA9120BPCN-6, SA9120BPCN3-1, SAOINHWR, 1039939, 1039938, 1039809,1039813,1039816, https://www.firstalertstore.com/store/products/hardwired-smoke-alarm-9120B.htm. thank you! Reviewed: 10/30/2017 by Raymond Dunleavy, Received smoke alarm in timely manner. Ordering directly from first alert is the best way to go. It includes a 9-volt battery for backup and continued function in the event of a … I was looking to replace all our first alert alarms with the least amount of damage to the drywall and re-wiring. this website is convinient, easy to order. I now feel comfortable and confident that I have smoke alarms that will aid us should we ever need them...Thanks. This was the best place I could order them all for a great price. Email us. I installed these for the bedrooms to replace an older model. It was also delivered as promised. Every home should have several smoke and CO alarms. First Alert BRK 9120B … Lowest prices, convenient online store, fast shipping and good packaging. This connected perfectly to our system. This hardwired smoke detector wires directly into your homes electrical system. Interconnected Alarms: Press and hold the Test/Silence button until the first unit triggers an alarm. Thanks First Alert Store. Was very Happy when the smoke alarm was received the 9v battery was included. I'm a comparison shopper and the First Alert store is the cheapest vendor. Product is as presented. Good product. The alarm was exactly like the one I had. Product worked as expected and was also able to communicate with other alarms in the home. Easy install, very quick delivery, very satisfied, Reviewed: 02/08/2019 by Pamela Holmberg-Wertz. Bought 96 for a hotel I run!! Thanks for the replacements I needed. He took the time to warn me regarding not to touch the wires and that he would process immediately.. Great people, great products and reasonable prices. All I had to do was install this with the base it came with and connected it up. The price was great. They were so easy to put up and look great in the house! Very easy to install! Detectors plugged into existing connectors and base rings. Quick fix. Fast delivery. Thank you for the order, I wish if we have option to not include the battery 9 v, as we face deficiencies in Shiping item by air. ORDERED IT AND COULDN'T BE HAPPIER! easy to install. So far this alarm seems to be great. only need to unplug and change the ceiling mount included. Very happy with the speed of the delivery. Loosen two screws on old mounting plate, remove mount. Our order came really fast and it was perfect. Luckily the original power connectors could still be plugged into new alarms, saving me electrician charges. Good price and quick delivery. Wish everything was this simple! I immediately ordered the replacement with free shipping and saved over $30 versus Amazons price. Trending at $34.95. Replacement was quick and simple. This is the brand that was used originally, lasted 14 years. Easily installed I have same connector but older base is different size - replaced in a minute. 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