USI Electric Hardwired Ionization Smoke and Fire Alarm with Battery Backup (5304)

  • USI Electric Hardwired Ionization Smoke and Fire Alarm with Battery Backup (5304)
  • USI Electric Hardwired Ionization Smoke and Fire Alarm with Battery Backup (5304)
  • USI Electric Hardwired Ionization Smoke and Fire Alarm with Battery Backup (5304)
  • USI Electric Hardwired Ionization Smoke and Fire Alarm with Battery Backup (5304)
  • USI Electric Hardwired Ionization Smoke and Fire Alarm with Battery Backup (5304)
Ionization | Battery Drawer | Silence
Availability: Back Ordered
Estimated In Stock date is 4/16/2020.
Regular: $19.95
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Price: $13.26
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  • Ionization Smoke and Fire Alarm
  • 120 Volt AC Wired-In
  • 9 Volt Battery Backup
  • Loud 85 db Alarm
  • Improved Nuisance Alarm Resistance
  • Quick Draw Battery Drawer
  • Test/Silence Button
  • Power and Alarm LED's
  • Super Heavy-Duty Battery Included
  • 2 Tamper Resistant Locking Features for Alarm and Battery
  • Interconnectable with up to 24 Compatible Devices (USI and Universal 120V Alarms included)
  • Ideal for Homes, Apartments, Dormitories, Manufactured Housing and Mobile Homes
  • Listed to UL217 Standard
  • California State Fire Marshal Approved
  • 10 Year Limited Warranty

The USI Electric 5304 Hardwired Ionization Smoke and Fire Alarm responds quickly to fast-flaming fires to protect your family against deadly threats in the home. Perfect for new or replacement installations, the 120-volt AC hardwired alarm is suitable for houses, apartments and mobile homes. Quick Find alarm origination identifies the first alarm to sound in an interconnected system and the single silence/test button temporarily quiets nonemergency alarms. The 9-volt alkaline battery (included) provides continuous protection in the event of a power outage.

This smoke and fire alarm also features a quick activation pull-tab and a front-loading battery drawer for replacement without removing the alarm from the bracket. Mount the bracket to any standard wiring junction box and use the large mounting base to cover imperfections in drywall. The plastic dust cover protects the alarm from debris and (2) tamper-resistant locks prevent unwanted alarm or battery removal. For maximum protection, install an alarm inside every bedroom, outside every sleeping area and on all levels of the dwelling. The USI Electric 5304 Hardwired Ionization Smoke and Fire Alarm comes with a 10 year limited warranty.

Recommended replacement for the following obsolete models:

  • Warranty: 10 Year Limited Warranty
  • Alarm Power Source: 120 volt hardwired & 9 volt battery backup
  • Alarm Sensor Type: Ionization
  • Manufacturing Credits: ISO 9001 certified factory, UL listed & CSFM listed
  • Product Dimensions (W x H x D): 5.75 x 5.75 x 1.75 in.
  • Product Weight: 0.42 lbs.
  • * If upgrading from the 5204 to the 5304 - While the electrical plug is the same, the ceiling mounting bracket will need to be updated with the new one supplied in the 5304 kit.
Product Specs
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Average score based on 98 reviews

Rating: 4.9/5Rating: 4.9/5Rating: 4.9/5Rating: 4.9/5Rating: 4.9/5

Rating: 2/5Rating: 2/5Rating: 2/5Rating: 2/5Rating: 2/5Two Bad Alarms

Reviewed: 02/10/2020 by Joseph Henn

Two of six alarms defective. Engineers were helpful, but your quality control procedures may need to be looked at. Return process was easy.

Customer Service Response:

We apologize for the inconvenience. We're glad we were able to resolve this for you swiftly. Your safety is paramount to us.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5

Reviewed: 02/10/2020 by James Rushing

On time and replaces an out of date unit.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5easy upgrade

Reviewed: 01/20/2020 by Stephen Whelan

having had USI Electric Hardwired Smoke and Fire Alarm with Battery units over the last 10 years looked again to USI for a replacement and was very satisfied with the swap out of the old with the new. Easy to do and good for another 10 years.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Model 5304 Smoke Detector

Reviewed: 01/14/2020 by Tom Samaras

Good product. I had to replace and older USI model that this one replaced. My older model lasted 9 years! The wire clip from my original model worked on the 5304 but the new mounting bracket had to be switched out but easy to install overall.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Very easy replacements

Reviewed: 01/13/2020 by Bryan Snyder

Reverse engineered to install very easily. Nice product without any issues of installing new with old product replacement in same circuitry, just good old plug and play!

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Easy Replacement

Reviewed: 12/27/2019 by Breck Plauche

I purchased 5 new 5304 units and found that I only had to replace the mounting plate. The original electrical connection for the units I bought in 2013 fit the new units so no re-wiring was required.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Easy to install

Reviewed: 12/14/2019 by Nicholas Blough

The smoke detectors went in easy and worked great.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Works great

Reviewed: 12/13/2019 by Ishai Strauss

Plugged them into some older ports for previous generation detectors and they are all working as expected.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Happy Camper

Reviewed: 11/20/2019 by Darlene Atsalakis

I received the smoke and fire alarms as ordered and it was fast. Very happy customer.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Smoke/fire alarms

Reviewed: 10/05/2019 by Richard Bissell

All were received and installed. No complaints.

Rating: 4/5Rating: 4/5Rating: 4/5Rating: 4/5Rating: 4/5Smoke Detector REPLACEMENT

Reviewed: 08/27/2019 by Dr. Jeff Tokryman

After reading the product info on the website, I purchased the 5304 alarm to replace the previous model that is no longer available. It would have been much easier to use the same base plate so all I would have had to do was plug in the power source. On the good least I did not have to replace the power source plug. Once installed everything is fine.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Smoke detectors

Reviewed: 05/31/2019 by robert stevens

Order from USI to replace existing aged detectors. Easy of making order and product description clarity a plus. Product received on time and excellent match. Great place to do business.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Excellent Product, easy replacement

Reviewed: 05/30/2019 by Manoj Subedi

I had usi alarms at my home. They expires but were still working. Wanna replace , order the new versions of them. Very quick response, speedy delivery, super easy replacement . Peace of mind for next 10 years.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Inexpensive and Easy to install

Reviewed: 05/23/2019 by Ann Donoghue

I tried to purchase smoke alarms locally to replace the outdated ones that came with the house. After two tries, I finally gave up and looked up the company that was on an old ones. I explained that I wanted a smoke alarm that I did not have to rewire and provided the number on the expired alarm. The company had what needed, but I would have to change the base plate one time. They changed to a universal base plate but the plug was the same as my former smoke alarm. I was apprehensive as my ceilings are 10 feet tall and I would be on a 7 foot ladder. Easy! It only took me a few minutes to change each one. Thank you Universal Security Instruments. I feel safe again.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5

Reviewed: 05/20/2019 by Tim Williams

Product was easy to order and install myself.

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A: The smoke alarm chirps to indicate a "low battery" condition, meaning the battery needs to be replaced. Battery powered smoke alarms will chirp a minimum of 30 days before the battery completely loses power.

AC powered smoke alarms with battery backup will chirp indefinitely assuming AC power is present; if battery power is low, or battery is removed; until a fresh battery is installed. Approved replacement batteries are listed on the back of each smoke alarm and in the user's manual.

Certain model smoke alarms with a silence button (designed to silence the alarm during a nuisance alarm) may chirp to indicate the smoke alarm is in the silence mode. The chirp will stop after approximately 8 minutes and the smoke alarm will return to its normal operation.

A: The flashing red light gives a visual indication that the smoke detector is functioning properly. It also indicates a working battery is connected to the smoke alarm.

A: When a green light is present on your smoke detector, it means that AC power is currently operating the alarm.

A: If the green light on your smoke detector is not on, it means the AC power has been interrupted to the alarm. Check the circuit breaker and AC wiring to make sure power is still reaching the smoke alarm.

A: When interconnected alarms are alarming, the smoke alarm which initiated the alarm, either by test button or sensing smoke, will flash the red LED light approximately once per second. The red LED light on the other non-initiated interconnected smoke detectors will not be lit but will sound the alarm.

A: The NFPA 72 standard states the interconnect limit is 12 smoke alarms and up to 6 other alarms (heat alarms or carbon monoxide detectors) for a total of 18 total alarms. With 18 alarms interconnected, up to an additional 6 relay modules may be interconnected (for a maximum of 24 devices).

If battery backup alarms and non-battery backup alarms and accessories are mixed in an interconnect system, all devices without battery backup WILL NOT operate during an AC power failure.

CAUTION: USI alarms and accessories should only be interconnected with other USI alarms and accessories. Connecting devices from another manufacturer to USI devices may result in nuisance alarms, failure to alarm, or damage to one or all of the devices in the interconnect system. All interconnected USI alarms should be powered by the same fuse or circuit breaker. Smoke alarms shall not receive their power from a circuit that is protected by a ground fault circuit interrupter. Improper connection will result in damage to the alarm, failure to operate, or a shock hazard.

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