First Alert SC9120B Hardwire Combination Smoke/Carbon Monoxide Alarm with Battery Backup
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Tools and Hardware Reviews of First Alert SC9120B Hardwire Combination Smoke/Carbon Monoxide Alarm with Battery Backup
Customer Review: BRK SC9120B Hardwired
Summary: 5 Stars
Originally had BRK alarms, but did research anyway as my alams were 15 years old. After doing my research decided on replacing all four of my existing alarms with this model, SC9120B. For just a few dollars more I figured it was worth having the CO2 detector on all levels of the house. Installation was simple, I replaced the connectors with the power on, if you are careful and do not ground yourself if is much faster. You will get a shock if you are not careful. Actually I got one when doing the cathedral ceiling unit. The units went right in. HOWEVER one of the units was defective, it worked but did not trigger the other units to go off. After some switching of units I was able to determine it was the unit. Reqested a replacement, got it, installed it, and then returned the unit just in case I needed a part. Return was quick and easy.
Some suggestions, tag the connectors in the electrical box, clearly identifing the installation date so you and others can tell when the units were installed. Before installing check the manufacture dates on the units themselves, do not accept older ones as the life of a unit is 10 years. While some people report receiving 1 to 2 year old units, mine were all only a few months old. Change the batteries once a year on a specific and rememberable date, such as the time change, of when you installed the unit.
The unts work well, as I was leaf blowing outside this weekend and the units were triggered by the exhaust because the windows were open in the house. Turned on the whole house fan and the unit went silent after a few minutes.
Customer Review: BRK SC9120B Smoke/Carbon alarm
Summary: 5 Stars
I kept putting off changing out my 7 year old alarms but finally decided to get going on it. I was pleasently suprised how easy it was to replace the existing BRK's, simple is the only word for it. Remove the existing plates, screw in the new ones, insert the existing plug, test and forget.
Customer Review: BRK smoke and CO alarm
Summary: 5 Stars
I used this BRK smoke and carbon monoxide alarm to replace a similar BRK smoke only detector. The instructions were clear, all necessary parts came with it, installation took about 3 minuets, and everything works.Customer Review: Brk smoke and carbon monoxide detector, model # 9120b
Summary: 5 Stars
Easy hookup, just change ceiling ring. I just had to unplug old 4120 smoke detector, change ceiling ring, and plug in new detector. If your I.Q. is over 3.0, you can do this.Customer Review: Can not beat the price
Summary: 5 Stars
We are a Plumbing and Heating company and it is required with most of our furnace installs to install these detectors.We purchased these combo C/O Smoke dectectors due to the price. We were paying about $15.00 more from our distributor for one of these, the same make and model. So the savings alone was worth it not to mention the product is of excellent quality. We install these with almost every furnace that we install.