I purchased 3 of these because ours quit working. Excellent device... not sure why original unit failed after only three years, but at least it tells me it is no good and needs replacement. Easy online ordering for the ones who get it done along with 24/7 customer service, free technical support & more. Received it in good time, unpacked it, pulled battery safety tab, crawled up ladder, plugged it in. In this article, you’ll learn how to replace a 9V battery in a smoke alarm. The detector is very good, and will wake you if carbon monoxide or smoke are present in your house. 99. After three years vacant our smoke and CO2 detectors began giving us false alarms. Get Pricing and Availability. Extremely reliable and the price is fair. Save on Fire Safety. Very easy to install and great price point for protection for smoke and Carbon Monoxide. Excellent product. Best price was right here on the First Alert website. The detector arrived promptly and was ready to install with no problems. product known to me Q: Will carbon monoxide alarms detect explosive gas leaks? Updating some alarms in our complex from the 9120 smoke detector to this smoke and CO detector could not be any easier. Unit part of whole house wired system, plugged in and worked fine first time, satisfied with operation and overall system. Interconnected Alarms: Press and hold the Test/Silence button until the first unit triggers an alarm. order a replacement combo co2 -smoke alarm from first alert and received the item in what I felt was record time. I feel at ease now that I have new alarms in place. They were exactly what we needed, and now we have peace and quiet again. Just what I was looking for. They were very easy to install,Hardwired and came with batteries, which I didn't expect. PLEASE READ CAREFULLY AND SAVE This user’s manual contains important information about your Alarm’s operation. CBS News. I was very happy with my purchase. Again great product.....when I built my house, carbon monoxide alarms were not needed on every floor...But with your product it is a very easy upgrade. Connects with other compatible BRK and First Alert hardwired smoke and carbon monoxide detectors. Please, First Alert SC9120B Hardwired Combination Smoke/Carbon Monoxide Alarm Reviews, First Alert SC9120B Smoke and CO Alarm Manual, First Alert 9120B Hardwired Smoke Alarm with Battery Backup, First Alert 7010B Hardwired Photoelectric Smoke Alarm with Battery Backup, First Alert 3120B 120VAC Hardwired Photoelectric and Ionization Smoke Alarm, First Alert ADF-12 BRK/Firex Smoke Alarm Adapter Plug (Pack of 12), First Alert PRC710 10-Year Battery Photoelectric Smoke & CO Alarm (1039868), First Alert SCO501CN-3ST Wireless Talking Smoke & Carbon Monoxide Alarm 1039839, First Alert SC7010B Hardwired Photoelectric Smoke/Carbon Monoxide Alarm, First Alert CO410 Battery Operated Carbon Monoxide Alarm (1039727), First Alert ADK-12 BRK/Kidde Smoke Alarm Adapter Plug (Pack of 12), Onelink Safe & Sound Smart Smoke + Carbon Monoxide Alarm, Amazon Alexa - 1039102. IT WAS EASY TO INTEGRATE WITH MY SYSTEM [OTHER 6] & WORKED OUT PERFECTLY. Selecting an appropriate location to install your smoke and carbon monoxide alarms (see below guidelines for additional information): When installing an alarm on the wall, the top edge of an alarm should be placed between 4 in. The side-load battery compartment makes changing the 9-volt battery simple. It took me 10 minutes and that includes setting up the ladder. This was a replacement for one that was malfunctioning. They were very easy to install. 1 All First Alert® and BRK® Smoke Alarms conform to regulatory requirements, including UL217 and are designed to detect particles of combustion. Grainger's got your back. Reviewed: 04/16/2014 by Dolores  Escamilla. This is our second one of these I've bought and I'm very happy! First Alert Hardwired Smoke/Monoxide Alarm SC9120B. It was an easy install. The alarm can be interconnected with up to 12 other compatible smoke alarms and six compatible devices such as bells and horns. Installed these in my upstairs and downstairs hallways for the dual Smoke and Carbon Monoxide protection. Its latching alarm indicator automatically identifies which unit initiated the alarm–even after the conditions that set off the alarm have subsided. Product was easy to install, easy directions to follow. Item #1620746 Model #1040510. Thank you for this product. Al Alli. It’s also a pretty great product for the price. Replaced detectors and problem solved. In this article, you’ll learn how to lock or unlock an alarm's battery drawer. These are far easier to install in and older house or adding alarms to an existing system. PLEASE READ ... a replacement for $5 per manual. Quality is very good but this is very expensive. My son said the installation was easy, especially since a new plate was included. Item #1620746 Model #1040510. What actually makes this model different from its predecessors? Once one alarm is triggered, all connected CO smoke alarms will sound. Product Details. 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