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How To Install First Alert Smoke +CO Alarm

Thank you First Alert for sponsoring this post. I hate being awaken in the middle of the night with loud chirping sounds. I solved this problem by switching my smoke alarm to one with a 10 year battery life. I am excited to show you how to install First Alert Smoke & CO Alarm.


My family safety is very important to me. I love having my family spend the night. I am super excited about this new smoke alarm. It’s the first Alert 10 Year Smoke & Carbon Monoxide Alarm. Knowing my family will have double protection makes me sleep at night.

This alarm provides 10-years of protection and eliminates the need for battery replacement and late-night, low battery chirps for a decade! (no more getting up in the middle of the night to change batteries) (yah!)


Don’t wait to replace! Your alarm won’t last forever! The next time you hear chirping noises at night know that you can install the First Alert 10 Year Smoke and Caron Monoxide Alarm very easily. Smoke and carbon monoxide alarm needs to be replaced every 10 years.

Supplies For Installation

  • Drill and 3/16 (5mm) drill bit
  • Philips head screw driver
  • Hammer
  • Anchors & screws ( comes with First Alert kit)
  • Pencil

How To Install First Alert Smoke & Co Alarm

I am installing one in the dining room. That way I can have the peace of mind knowing everyone is safe.

Hold the mounting bracket against the ceiling or wall. Trace the mounting holes on the surface with a pencil. (The two clusters of universal mounting holes are aligned at 9:00 and 3:00 o’clock position. Choose one of the sets of hole A,B,C, trace around one of the sets)

Drill a hole where you marked. Insert the anchors with the hammer, then install the screws not all the way. They should be slightly up. Place the bracket over the screws matching up the holes and then tighten the screws lightly.

Make sure you write down the date of the installation on back of alarm. Its a great feeling knowing your home will be protected for 10 years. I keep a manual for my home appliances and will add this installation date and instructions to the manual.

Mount the alarm, rotate it until its activated. You are all set to go and this will be activated for 10 years. The Alarm will let you know at the end of its life when to replace it. It’s amazing what technology can do.

I am so impressed with these alarms. I am planning to install a few more in the bedrooms.

Protect your family with the First Alert 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm which provides protection against both smoke and carbon monoxide.


  1. Perfect timing, Maria! I was looking for alternatives to avoid wired smoke/carbon detectors but wanted an easy way to install. These look amazing and 10 year without beeping is a plus!!


  2. Wish I would have seen a post like this a month ago. I called the electrician that installed mine. He replaced two smoke detectors and charged me hundreds of dollars.

  3. Eeeeek, I didn’t know they needed to be replaced. Thanks for the heads-up and the easy to follow instructions.

  4. Thanks for sharing this Maria; it’s SO important to be on top of these things. Fire alarms save lives.

  5. Rosemary Palmer says:

    A must to have. We are in an apartment so that is covered for us by maintenance.

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