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  • Ionization Smoke and Fire Alarm
  • 120 Volt AC Wired-In
  • 9 Volt Battery Backup
  • Long Life Lithium Battery Included
  • Loud 85 db Alarm
  • Improved Nuisance Alarm Resistance
  • Quick Draw Battery Drawer
  • Test/Silence Button
  • Power and Alarm LED's
  • 2 Tamper Resistant Locking Features
  • Interconnectable will all USI and Universal 120V Alarms
  • Compatible with up to 24 Devices
  • Ideal for Homes, Apartments and Mobile Homes
  • Listed to UL217 Standard
  • 10 Year Limited Warranty
Manuals

The USI Electric 5304L 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, this 120-volt AC hardwired alarm is suitable for houses, apartments and mobile homes. This hardwired smoke alarm is fully interconnectable with all USI and Universal 120V alarms using existing wiring and mounting. Quick Find alarm origination identifies the first USI detector to sound in an interconnected system and the single silence/test button temporarily quiets nonemergency alarms. The long life lithium battery backup (included) provides protection in the event of a power outage for the entire life of the alarm.

This hardwired smoke and fire alarm also features a quick activation pull-tab and a front-loading battery drawer for replacement without removing the detector 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 a smoke alarm inside every bedroom, outside every sleeping area and on all levels of the dwelling.

WHY DOES MY SMOKE ALARM 'CHIRP' APPROXIMATELY ONCE EVERY MINUTE?
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.
WHAT DOES IT MEAN WHEN THE RED LIGHT ON THE ALARM FLASHES APPROXIMATELY ONCE EVERY MINUTE?
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.
WHAT DOES THE CONTINUOUS GREEN LIGHT ON MY SMOKE ALARM INDICATE?
When a green light is present on your smoke detector, it means that AC power is currently operating the alarm.
THE GREEN LIGHT ON MY SMOKE ALARM HAS GONE OUT, WHAT DOES THIS MEAN?
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.
HOW CAN I TELL WHICH SMOKE ALARM IN A MULTI-STATION SYSTEM INITIATED THE ALARM?
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.
HOW MANY SMOKE ALARMS OR DEVICES CAN BE INTERCONNECT AT ONE TIME?
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.
Product Details
Product Specs
UPC:
042741153041
MPN:
5304L
Category:
Smoke Alarms
Product Manuals
USI Hardwired Ionization Smoke Alarm with Long Life Battery Backup 5304L Video

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5304L customer reviews

Overall Rating

4.9
16 Reviews
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16 customers recommend this product
USI Hardwired Ionization Smoke Alarm with Long Life Battery Backup 5304L Reviews
Brent F
November 29, 2018
Verified Purchase
Good replacement smoke alarm

House was built with USI interconnected smoke alarms installed. Time to replace them, so I chose the 5304Ls with the ten-year battery for convenience.

Jonathan Eubanks
August 15, 2018
Verified Purchase
Longer life

Longer life batteries make maintenance easier.

David Rupert
April 24, 2018
Verified Purchase
Easy Installation

These were easy to install as replacements to Model 5204 Smoke & Fire Alarms, because of using existing wires & plug-in.

William Chandler
February 7, 2018
Verified Purchase
No problems

Installed without any issues. No apparent defects. Would buy again.

David Long
December 29, 2017
Verified Purchase
smoke alarm 5304L

Very simple to install. The alarm replaced model 1204 and the base fits easily into the old ceiling fitting. USI has taken care to make sure the upgraded new devices can be used in the same location as the previous models.

Peter Pernarelli
July 15, 2017
Verified Purchase

Detectors were ordered to replace expired units. Installation was straightforward.

Laura Keir
April 20, 2017
Verified Purchase
Great Customer Service

I ordered online, based on reviews and comments, the model I thought would replace my smoke alarms since they all went off at one time-my experience told me they had reached the end! Come to find out, I picked the wrong one! I called the company and they immediately advised the correct unit, placed the order for me and sent me RMA paperwork for return! All in just a few minutes! Wonderful customer service! I highly recommend this company!

Richard Doyle
January 2, 2017
Verified Purchase

VERY NICE PRODUCT AND VERY PLEASED WITH ENCLOSED WIRING TO MATCH AND MOUNTING PLATE YOU REQUIRE FOR INSTALLATION.LONG LIFE BATTERY IS SUPER VALUABLE TO ENHANCE PRODUCT !

Joseph Guidage
November 18, 2016
Verified Purchase
7 5304Ls

Shipped promptly, easy installation, works as advertised.

anthony perrone
May 24, 2016
Verified Purchase

At 70 I don't want to be climbing ladder to change batteries. Good idea making them last longer

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