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Internet # 334547114

Model # USI/SM/REP/3

Store SKU # 1013748580

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(3-Pack) 9-Volt Battery Operated Smoke Detector with Photoelectric Sensor

Includes 3 units
$47.97
($15.99 /unit)
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  • UL certified smoke alarm with 1-year battery
  • Advanced technology reduces nuisance alarms
  • Easy installation and easy to install
  • View More Details

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Product Details

About This Product

Experience unparalleled protection with the USI Battery Smoke Alarm. Equipped with Sensing Plus Multi-Criteria Detection, this advanced photoelectric alarm accurately identifies both slow-burning and fast-flaming fires, ensuring early detection and rapid response. This compact alarm contains 1-replaceable 9-Volt battery to ensure uninterrupted protection, even in the event of power failures. Advanced technology reduces nuisance alarms, minimizing disruptions from activities like cooking. Should you experience a false alarm, easily silence it with the test/silence button. With UL certification, you can trust in the reliability and performance of USI Smoke Alarms. Invest in peace of mind and protect your loved ones with this advanced home safety solution. With over 50-years of experience as a leader in home safety, USI provides reliable, long-lasting protection for your home.

Highlights

  • Click here to view the Entire Universal Security Instruments assortment
  • Sensing plus multi-criteria detection accurately identifies both slow-burning and fast-flaming fires
  • Replaceable battery - ensures continuous protection even during power outages
  • Compact design allows for discreet placement in a variety of locations without taking up much room
  • Superior false alarm resistance - reduces nuisance alarms, minimizing disruptions
  • Meets the requirements of leading safety organizations: underwriters laboratories (UL) 217 9th edition, federal housing authority (FHA), housing and urban development (HUD), and the national fire protection association (NFPA)
  • Easy Installation - Simple setup for hassle-free installation
  • A low battery chirp alerts you when batteries need replacing
  • Dust/Paint Cover - Protects the alarm during construction or renovations
  • 85 decibel alarm can easily be heard from a distance or wake family members from sleep for fast response
  • 10-year limited warranty on alarms
  • Click here for more information on Electronic Recycling Programs
  • Return Policy

Product Information

Internet # 334547114

Model # USI/SM/REP/3

Store SKU # 1013748580

Specifications

Dimensions

Product Depth (in.)

1.4 in

Product Width (in.)

4 in

Details

Alarm Sensor Type

Photoelectric

Alarm/Detector Features

Hush Button, Light Indicator, Tamper Resistant

Alert Type

Siren

Battery Type Required

9-volt

Commercial/Residential

Home

Included

Batteries, Installation Kit, Mounting Hardware, Owner's Manual

Pack Size

3

Power Source

Battery

Returnable

90-Day

Voltage (V)

9 V

Warranty / Certifications

Certifications and Listings

ETL Listed

Questions & Answers

Does this have a bug and debris mesh screen?
ByJul 14, 2026
1 Answer | 
Answer This Question

Thank you for your question, no this does not have a mesh screen.

By|Jul 17, 2026


    What is the photo electric sensor in the smoke alarm
    ByApr 7, 2026
    1 Answer | 
    Answer This Question

    Thank you for your question, the photoelectric is a type of smoke detection technology that uses light to detect smoke particles.

    By|Apr 8, 2026


      Can I use alkaline batteries instead of carbon zinc batteries?
      ByMar 30, 2026
      1 Answer | 
      Answer This Question

      Thank you for your question, only 9v Carbon Zinc battery is recommended.

      By|Mar 31, 2026


        The alarms come with heavy duty zinc carbon batteries. Can alkaline batteries also be used? Will alkaline batteries have to be changed less often?
        ByNov 7, 2025
        1 Answer | 
        Answer This Question

        Thank you for your question, alkaline batteries can be used for the smoke alarms.

        By|Nov 10, 2025


          Does this detect CO
          ByOct 27, 2025
          1 Answer | 
          Answer This Question

          Thank you for your question, this unit does not have carbon monoxide detection. Please reference Internet # 334547495 Model # USI/SMCO/10YR/V Store SKU # 1013748577 for both smoke and carbon monoxide detection.

          By|Oct 28, 2025


            Is this a security camera as well
            BySep 20, 2025
            1 Answer | 
            Answer This Question

            Thank you for your question, this is not a camera unit.

            By|Sep 22, 2025


              Are this interconnected
              BySep 8, 2025
              1 Answer | 
              Answer This Question

              Thank you for your question, only the hardwired units are interconnected.

              By|Sep 9, 2025


                Viewing 1-7 of 7

                Customer Reviews

                4.3 out of 5

                • 4.3 out of 43 reviews
                • 100% recommend this product
                Filter by:
                Showing 1-10 of 43 reviews
                This customer chose to rate the product and not provide text.
                by
                I buy these for all of my rental homes; they are super easy to install, and affordable! The instructions also tell you exactly where to put them, which helps pass city inspections.
                by
                I hope they never have to be put to the test
                by
                Response from Product ExpertDec 2, 2025
                Thank you for your feedback and for choosing Universal Security Instruments products for your needs.
                • Verified Purchase
                Reliable and Easy Home Protection with Advanced Photoelectric Detection
                The Universal Security Instruments (3-Pack) 9-Volt Battery Operated Smoke Detectors deliver reliable, easy-to-install home safety with a thoughtful design. Three standout features make this set impressive: its advanced photoelectric sensor technology, which provides faster detection of slow, smoldering fires; the battery-powered convenience, allowing for flexible placement without the need for wiring; and the durable, low-maintenance design that ensures dependable performance over time. Ideal for both homeowners and renters, these detectors combine efficiency, affordability, and peace of mind—making them a smart investment in household safety.
                by
                Response from Product ExpertNov 6, 2025
                Thank you for your feedback and for choosing Universal Security Instruments products for your needs.
                • Recommended
                Crap design
                Complete crap Whomever designed the mount should be shot. You can not align it so words are on top, id you do the bracket has to be tilted. To get it to lock in you have to perfectly align the slot and the poke thing. Save yourself the trouble and get a kiddie, round holder, round alarm. Simple. Fix your design.
                by
                Response from Product ExpertSep 22, 2025
                Thank you for your feedback, we are sorry to hear about the issue with your product. At your convenience feel free to contact us before returning to your retailer, please contact customer service at feit.com/help for assistance.
                  1 found this review helpful
                  Sound the Alarm
                  These fire alarms a good value for a step above a basic fire alarm. You are offered smoke and fire detection, when often an entry level just has a single sensor that is easy to set off by mistake. I have a stairway next to the kitchen that constantly goes off if I cook with oil and lose sight of a dish. I haven't had a single issue since replacing it with one of these. These are smaller so if you are replacing an older fire alarm you are most likely going to need to touch up the ceiling with paint for the smaller foot print. The only reason I took off a star was the mounting system. After apply the mount to the ceiling, I had a hard time twisting it so it clicked. There is a plastic tab that is supposed to help secure it I believe, but if bent to far down from the manufacturer it is difficult to get it to click. I was able to get them all mounted with little issue outside of that. My only other ask, and this is for all manufacturers, is to place your branding on either the sides or the back of the device. These are a necessity but it doesn't have to be an eye sore. The rest of the design looks quite nice.
                  by
                  Response from Product ExpertAug 21, 2025
                  Thank you for your feedback and for choosing Universal Security Instruments products for your needs.
                  • Recommended
                  1 found this review helpful
                  Nice compact smoke alarms
                  This is a nice three pack of smoke alarms with everything required to install and be protected in a convenient package. The smoke alarms are sleek and good looking with a quite a bit smaller footprint than many available on the market today. They even include 3 nine volt batteries to get you started which is definitely a nice touch to not make you buy separately.
                  by
                  Response from Product ExpertAug 21, 2025
                  Thank you for your feedback and for choosing Universal Security Instruments products for your needs.
                  • Recommended
                  Great example of a photoelectric smoke detector, comes with batteries, and mounting brackets, also the screws and drywall anchors. Great to have!
                  These are decent smoke detectors, and are photoelectric, not ionization. Why does that matter? They are proven to be more effective in sensing smoke from a house fire vs. ionization which tends to false alarm due to cooking and such. So here is my take on this. I used to work in electronic security all of my life. Photoelectric smoke detectors were what alarm companies would install, but as they were expensive, ionization smoke detectors ruled the roost as the saying goes. However, as technology has improved and the need to make more effective smoke detectors, these photoelectric models became affordable and more mainstream. The kit comes with everything you need to get 3 smoke detectors powered and mounted. I decided to use lithium 9V batteries as they last much longer and it's hard for me to get to some of these to replace the batteries. Regardless, I replaced several of my smoke detectors that were over 10 years old. I have been replacing all of the ionization ones with photoelectric as time goes on. This kit represents a decent value and easy to buy and install. One on each floor but should also have detectors in each bedroom, and personally I put them in places like my heater room, electrical closet, etc. I feel like I can't have enough smoke detectors in my home as the sooner I know, the quicker action will occur, and I will hopefully minimize the damages if I know sooner than later. This makes it easy to buy 3 packs, and install them in sensitive areas. I would recommend these, they are easy to work with, small footprint, and loud as expected.
                  by
                  Response from Product ExpertAug 21, 2025
                  Thank you for your feedback and for choosing Universal Security Instruments products for your needs.
                  • Recommended
                  NICE COMPACT FIRE DETECTORS
                  Needed to replace my aged fire detectors and these looked like a great option. Appear to be high quality. Install was extremely easy and included all necessary hardware including wall anchors and 9 volt Energizer batteries. Units have a 10 year warranty. There is a test button to assure you units work. These units are battery operated only …not for hardwired construction.
                  by
                  Response from Product ExpertAug 21, 2025
                  Thank you for your feedback and for choosing Universal Security Instruments products for your needs.
                  • Recommended
                  Great item
                  After having a recent garage fire, I realized all my smoke detectors were nearing 10 years old. When I found these in a 3 pack, it was just what I needed. They come with everything thing included, even new batteries. They also come with plastic bonnets on them, incase you are painting or remodeling, so dust doesn’t get in them. They are supper loud yet they are more compact in size.
                  by
                  Response from Product ExpertAug 21, 2025
                  Thank you for your feedback and for choosing Universal Security Instruments products for your needs.
                  • Recommended
                  Showing 1-10 of 43 reviews

                  Compare Key Features

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                  Product Snapshot

                  Ideal for homeowners seeking reliable fire detection with photoelectric sensors, ensuring early warning and peace of mind.
                  Ideal for homeowners looking for enhanced safety, with photoelectric sensors and 85dB alarm for reliable fire detection.
                  Ideal for homeowners looking for photoelectric smoke detectors, ensuring early smoke detection and 10-year battery life.
                  Ideal for homeowners wanting whole-home interconnected safety with 10-year battery life.

                  Sensor Type

                  Photoelectric
                  Photoelectric
                  Photoelectric
                  Photoelectric

                  Battery Life

                  10 years
                  10 years

                  Interconnectivity

                  Self-Diagnostics

                  Silence Button