USI Electric Product Overview

USI 1204

Fire. Carbon monoxide. Natural gas leaks. These harmful substances can cause death or injury in the home. But how do you mitigate the risk for these hazards? You can prevent disaster through detection by investing in products that provide early warnings and peace of mind.

USI offers different detectors to alert you when carbon monoxide, fires, or natural gases pose a threat to your safety. We’ll share some common USI detector models and their features.

Ionization Smoke and Fire Detectors

The USI 1204HA smoke detector and fire alarm model hardwires to 120V power and includes a backup battery. Connect it with up to 18 other alarms for added safety throughout your home. The 1204HA also has an originating alarm feature in which the initial detector’s red LED flashes to determine where the fire started.

To update from older USI smoke detectors, the USI 1204HA model directly replaces the 1204A, 1208, 1209, 1213, and the SS-790 smoke alarm models.

When replacing USI smoke detectors manufactured before 2016, remove and entirely replace the old mounting bracket with the new unit’s provided bracket. The 1204HA mounting plate measures 5 5/8 inches.

For more information, check out the spec sheet and manual.

USI 5304

The USI 5304 smoke detector and fire alarm features tamper proofing with a sealed cover that cannot be removed. Pull the installed locking pins using long nose pliers to remove the USI smoke detector from the mount to clean the detector or replace the battery.

The USI 5304 model directly replaces obsolete models 5204 and SS-2795.

When replacing USI smoke detectors manufactured before 2016, remove and entirely replace the old mounting bracket with the new unit’s provided bracket.

For more information, check out the spec sheet and manual.


Carbon Monoxide and Gas Detectors

USI MCN108

Use a carbon monoxide and natural gas detector to catch the buildup of dangerous gases before it’s too late. Excess carbon monoxide causes poisoning and death, and natural gas buildup can cause explosions.

Place a USI MCN108 detector in your home to help reduce the risk of these accidents.

The USI MCN108 detector hardwires to 120V with a 9V battery backup. It also features tamper resistance preventing alarm and battery removal.

Use the USI-MCN108 model to directly replace the USI-7390.

The carbon monoxide and natural gas detector’s end-of-service warning, 2 chirps approximately every 20 seconds, will signal about 7 years after starting up.

For more information, check out the spec sheet and manual.


Combo Smoke Detectors

USI MIC1509S

For a combo smoke detector capable of sensing smoke, fire, carbon monoxide, and natural gas, consider the MIC1509S combination alarm model. It offers nuisance alarm resistance with its microprocessor intelligence.

The combo smoke detector also features a sealed 10-year battery, so you don’t have to worry about changing batteries. And around 10 years after activation, the MIC1509S will give end-of-service warning, 2 chirps about every 60 seconds, to let you know to replace it.

Directly replace the USI-7795 and MICN109 models with a MIC1509S.

For more information, check out the spec sheet and manual.

While dangers may arise at home, USI Electric’s products provide safety. Outfit your home with HomElectrical’s selection of USI detectors to alert you to those potential dangers. Check here for a full listing of our USI Electric products.

Recommended Reading

Prevent house fires by investing in a proper smoke detector. USI smoke detector use an ionic sensor or a photoelectric sensor to keep your building extra safe.

Carbon monoxide detectors protect your home by sensing the presence of carbon monoxide and emitting an alarm to alert you. New technology allows for advanced features such as a digital display screen, end-of-life warning, and a voice warning.

Disabling your smoke detector or forgetting to change the battery can put you at risk. Maintain your smoke detector and keep your building safe.

Mark Watola
Mark Watola

Mark graduated with a B.S in Communications from Kennesaw State University in 2020. Enlisted in the United States Marine Corps from 2012 to 2016, Mark operated as a Photojournalist and Correspondent at the Marine Corps Base Camp Lejeune Public Affairs Office. Learning from his time in the military, Mark prides himself on having an adaptable and mission-based mindset with a willingness to work cooperatively to craft quality content.

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