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First Alert Slim Design Battery-Operated Photoelectric Smoke & Fire Alarm - PR700

This maximum protection alarm has a patented smoke entry system that allows a direct smoke path to the photoelectric sensor to detect regular and slow smoldering fires. First Alert Nuisance-Free Technology will reduce false alarms that result from cooking and shower steam. This smoke and fire alarm includes a loud 85db sound output, powerful LED indicator, end of life signal, mute and single test/silence button so you can test your alarm regularly. Installation is easy with the simple twist lock wall and ceiling mount. This smoke detector meets UL217 standards and is backed by a 10-year limited warranty. The First Alert Slim Design Battery-Operated Smoke and Fire Alarm is the perfect low-key addition for any number of home settings.

Photoelectric Sensor Warns of Smoldering Fires

The First Alert PR700 Smoke Alarm comes equipped with a photoelectric sensor to provide the earliest possible warning of fire. The sensor is optimized to detect larger smoke particles produced by smoldering fires, such as those caused by unextinguished cigarettes. It also distinguishes between real threats and smoke/vapor produced during showering, cooking, and other everyday activities, helping minimize the number of false alarms. A patented smoke entry system helps ensures reliable detection by providing a direct air pathway to the sensor.

Sleek, Low-Profile Design

Half as thick as a standard alarm, the First Alert PR700 Photoelectric Smoke and Fire Alarm packs premium detection features into a sleek, compact unit. The ultra-thin design features a white finish that blends seamlessly with most home decor.

Battery-Powered Alarm Installs Easily

This battery-powered smoke and fire detector requires no rewiring and no electrician to install. Simply mount it on a wall or ceiling using the versatile twist-lock mounting bracket. An end-of-life signal will notify you when the detector is nearing expiration.

Alerts You to Danger

When a threat is detected, the smoke and fire alarm sounds a loud 85-decibel siren that is designed to wake even the soundest of sleepers. A single button allows you to silence alarms and test if the device is working.

First Alert Slim Design Photoelectric Smoke & Fire Alarm PR700

* Recommended replacement for the following obsolete models: SA710CN, SA710LCN.

** California and New York Residents - Please note this alarm is not compliant with your State's 10 Year Sealed Battery Alarm Legislation Requirements.

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.
Product Details
  1. Smoke particles of varying number and size are produced in all fires. For maximum protection, use both ionization and photoelectric sensing technologies. Ionization alarms are generally more sensitive to fast flaming fires and photoelectric alarms are generally more sensitive to smoldering fires.
Product Specs
Smoke Alarms and Smoke Detectors
Product Manuals

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PR700 customer reviews

Overall Rating

20 Reviews
20 customers recommend this product
First Alert Slim Design Battery Photoelectric Smoke Alarm - PR700 Reviews
Terry M
September 2, 2022
Verified Purchase
Great Product!

They are quick and easy to install and just as easy to check if they are working correctly and within date.

Steve Wolfe
March 17, 2021
Verified Purchase
Great smoke detector

Reasonably priced, very fast shipping.

Karen Carrey
January 11, 2021
Verified Purchase
smoke alarm

It was easy to install with the good directions it came with. The slimmer alarm design is better and it has performed as expected for biweekly testing.

joe c armenta
September 24, 2020
Verified Purchase

Not all items were in stock, so Jenna McLaughlin worked with me to deliver what you had immediately, then the rest later. Good Customer Service!

david tamura
August 12, 2020
Verified Purchase
No Need for AC Wiring

I wanted to have both photoelectric and ionization alarms in the same room but I did not want a combination type smoke detector. Although I could not connect another AC powered alarm to my houses smoke detector network, this alarm was easily installed because it is battery powered, not battery backed-up.

Danny Cousineau
July 6, 2020
Verified Purchase
Improved model

I purchased the PR700 over the previous unit because unlike the replaced unit this one has a replaceable battery and I prefer a fresh battery on a yearly basis.

Walter Lapis
May 19, 2020
Verified Purchase
Good product

This smoke alarm is very easy to install. It is designed well. This is my second alarm and I'll buy it in the future.

Thomas Ewing
February 24, 2020
Verified Purchase
Fills the Bill

I desire an alarm with a replaceable battery because the permanent 10 year battery models have failed to last more than 3 or 4 years. This model PR700 is just what I want and seems to work as intended.

Jason T
December 31, 2019
Verified Purchase
Good so far

I tried this alarm after being dissatisfied with a different brand that I'd been using. The unit is in my kitchen and I'm hoping the photovoltaic version will result in fewer alarms, particularly when cooking bacon, which always set off my old one. This unit is thin and installation was easy.

Charles Hereford
December 27, 2019
Verified Purchase

Received and installed in less than 5 minutes. Newer units are very slim and blend well. Very pleased.

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