Customer Reviews For The Precision Detection Interconnect Smoke and Carbon Monoxide Alarm with Voice

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wilson c

September 18, 2025

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Wireless Interconnect to Bridge works

I used this with a SA520B to wireless interconnect to bridge to other hardwired alarms and it worked to sound the other alarms. The competitor brand K didnt do that, and this even works with theirs over the bridge traveller wire. And theirs had false alarms. So, I'm happy.

What is the #1 Reason Why Smoke Alarms Are Disabled?

The #1 reason why people disable smoke alarms in their home is due to nuisance alarms caused by cooking or steam leaving them unprotected (NFPA). Almost 3 of every 5 home fire deaths result from fires with no smoke alarms or no working smoke alarms (NFPA) so it is important to install and maintain your home’s alarms. Installing 8^th edition alarms equipped with Precision Detection and following proper placement of at least 15 ft. away from cooking appliances will help reduce nuisance alarms.

Why Is My Smoke Alarm Beeping?

Smoke alarms can beep for to the following reasons:

Low Battery: This is the most common cause. Most smoke detectors use a chirping sound (usually a single beep every 30-60 seconds) to warn you that the batteries are running low and need to be replaced. Don't wait until the alarm is silent - replace the batteries right away to ensure your smoke alarm continues to function properly.

End of Life: Smoke alarms don't last forever. If your smoke detector is beeping constantly or in a different pattern than the low battery chirp, it may be nearing the end of its intended lifespan and should be replaced altogether.

Effortless Operation & Installation

The First Alert SMCO500V Interconnect Combination Smoke and CO Alarm features voice and location alerts. This combination detector is equipped with premium and convenient safety features like a one-touch test/silence button and optional locking features to prevent unwanted removal of the detector or batteries. The low battery and end-of-like warnings will help notify you when it's time to replace the batteries and alarm itself. See user's manual for information on how and when to test and replace detectors.

Voice & Locations Alerts

The 2-in-1 smoke and CO alarm provides an early warning to a fire or carbon monoxide emergency. If the alarm sounds, a friendly voice will also tell you the type and location of danger in your home to help you safely escape. Easily program the combination detector using the 11 pre-programmed home locations.

Wireless Early Warning Interconnect

Install as a single combination alarm or wirelessly interconnect multiple alarms together to create an alarm system to cover your whole home. When one interconnect alarm sounds, all connected detectors will sound to provide an early warning. Integrate with up to 12 other First Alert or BRK alarms and 6 other compatible devices. Reference user's manual for compatible detectors. The latching alarm indicator will visually identify the unit that initiated the alarm if the system sounds.

Upgrade to 8th Generation Alarms

First Alert's Precision Detection Advanced Sensing Technology meets the latest safety standards. This means this combination alarm is better at distinguishing between harmless cooking smoke and real fires. Additionally, 8^th edition alarms can detect smoke from burning synthetic materials, which are common in modern homes. This translates to fewer bothersome false alarms and a crucial early warning in case of a fire emergency.

First Alert Interconnect Battery-Operated Smoke & CO Alarm with Voice SMCO500V

Recommended replacement for the following model:

SCO500