Advanced Ionization & Multi-Criteria Detection
Fast-flaming fires move in seconds. Our active 2026 Sensing Plus® lineup is engineered for rapid response and industry-leading reliability.
The Active Safety Advantage
While legacy ionization sensing was designed specifically for fast-flaming fires, USI has evolved. The new Sensing Plus® models combine the speed of ionization with the nuisance-resistance of photoelectric technology. These active models utilize AI-driven multi-criteria sensors to detect threats 87% faster while virtually eliminating false alarms caused by everyday cooking smoke or steam.
Evolving Safety Standards
Upgrading to the new **Sensing Plus®** standard ensures your home is protected by the most advanced technology currently available on the market. These models are designed specifically to address the faster-burning materials found in modern homes.
Related Products
Universal Security Store Past News Articles
Browse the latest Universal Security Store news, product updates, buying guides, safety tips, promotions, and store announcements.
What is Local Law 157?
By January 1, 2027, NYC property owners must install UL 1484 natural gas detectors in all residential dwellings to comply with LL157.
Addressing Methane Hazards: The Impact of California AB 1725
Proposed California legislation AB 1725 would mandate residential methane disclosures and the installation of natural gas alarms.
Protecting Your Home: USI Alarms and Fire Prevention Month Awareness
Upgrade your home with reliable USI smoke alarms and carbon monoxide detectors during National Fire Prevention Month.
Why a Smart, 3-in-1 Alarm is a Modern Necessity
Offering advanced protection that goes far beyond a traditional smoke detector, This combination alarm is designed to protect your home and family.
USI 8th Generation Smoke Alarms | 8th Ed. UL 217 Standards
8th generation smoke alarms, also known as 8th generation smoke detectors, represent a significant leap in fire safety technology for homes.
Peace of Mind and Safety: Why You Need a Natural Gas Alarm in Your Home
A leak can go unnoticed, potentially leading to explosions or carbon monoxide poisoning. That's why having a USI natural gas alarm with carbon monoxide detection is crucial for protecting yourself and your loved ones.
10 Year Sealed Battery Smoke Alarms: Peace of Mind for a Decade
Traditional smoke alarms require battery changes every six months to a year. This can be annoying, and sometimes, it simply falls through the cracks. 10-year sealed battery smoke alarms eliminate this concern entirely.
Where to Place Carbon Monoxide Alarms in Your Home
Carbon monoxide (CO) is an odorless, colorless gas that can be deadly. It's produced by burning fuels like gasoline, wood, natural gas, and propane. Inhaling CO can cause flu-like symptoms, dizziness, nausea, and even death. Having working carbon monoxide alarms in your home is crucial to protect yourself and your family from CO poisoning.
Do Carbon Monoxide Alarms Detect Natural Gas Leaks?
No, carbon monoxide (CO) alarms cannot detect natural gas leaks. Although they don't directly detect natural gas, CO alarms can still play a crucial role in protecting your safety.
Why is my USI Electric Smoke Detector Beeping?
The USI Electric Smoke Detector chirping indicates a Your USI Electric Smoke Detector may be beeping due to 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.
Why Does My Carbon Monoxide Alarm Keep Going Off?
It's a very common question and one we're all too happy to answer. There can be a number of factors at play here. Ranging from the detector needing to be reset or replacing the unit's battery, there are a few things that can be triggering a beeping or nuisance alarm.
Natural Gas Explosion Levels Famous Hotel: Are You Protected?
We still do not hold the threat of natural gas to the same standard as we do smoke and carbon monoxide. It's something that needs to be addressed as natural gas disasters continue to appear throughout the world.
Protection From the Second Leading Cause of Home Fires
They're not talked about nearly as much as the previous two types, but heating fires account for a large percentage of fire incidents every year. One of the primary causes for heating fires is a reliance on portable heating equipment, especially in the winter.
USI Kitchen Smoke Alarm: Protection From The #1 Cause of Home Fires
You can't predict when or what type of fire will occur, but you can make sure that you and everyone around are properly alerted to its presence. To better understand the severity of this danger, we have to identify the different types of fires that occur in the home.
Universal Sensing Plus Smoke & Fire Alarms - Frequently Asked Questions
Universal Security Sensing Plus Multi Criteria Detection removes the dated use of single sensor technology by being able to detect both types of fires.
State of Maine New Natural Gas Detector Law
New Natural Gas Alarm Laws are being introduced in the United States. Make sure your home and family's surroundings are safe from this and other dangers with a USI Natural Gas Alarm.
Replacing the USI-1204 Hardwired Smoke Alarm
The USI-1204 alarm is no longer available so we have put together a list of other wired in smoke alarms that are compatible. Installing a replacement fire alarm is easy with our step by step guide.
Be Prepared: Essential Fire Prevention for Fall & Winter
Did you know that 3 out of 5 home fire deaths occurred in homes that did not feature operating smoke detectors? This can be directly linked to smoke alarms having exceeded their expiration date or just the absence of smoke detectors in general. It's a frightening reality that's compounded by the fact that fire departments across the United States annually respond to an emergency every 24 seconds.
A Consumer's Guide to Smoke & Fire Alarms
Shop Consumer Favorite Universal Security Smoke & Fire Alarms that include: hardwired smoke alarms, battery powered smoke alarms and the 8th edition Universal Security Sensing Plus Smoke Alarm series.
New Sensing Plus Smoke Alarms Meet UL Standard 217 8th Edition
USI 8th Generation Smoke Alarms conform to the latest UL Standards. Implementing a series of industry defining smoke and fire safety features, Sensing Plus Smoke Alarms excel in delivering precision results when alerting home and business owners to actual threats.
Battery-Powered vs Hardwired Smoke Alarms - Choosing The Right Detector
Is a battery powered smoke alarm or hardwired smoke alarm right for me?
Smart Safety, Real Value Smoke Alarms
Get the best protection without breaking the bank, we discuss our top smoke, fire, and carbon monoxide detection models with the best price tags.
Lithium-Free 10-Year Smoke & CO Alarms | USI Electric
USI Alkaline Powered Alarms are the first and only selection of detectors to implement Duracell Duralock Power Preserve Technology.
USI Carbon Monoxide Alarms & Observing National CO Awareness Month
The USI Store will be honoring National CO Awareness Month this January by spotlighting a large selection of USI Carbon Monoxide Alarms and Combination Alarms.
USI Ionization Smoke and Fire Alarm with Battery Backup
usi ionization smoke and fire alarm with battery backup available for online purchase at USI Store. Purchase USI hardwired and battery operated smoke alarms at the USI Store.
Whole Home Protection Made Easy with USI Room Alarms
The Universal Security Store has simplified the entire process by offering a selection of room specific USI Smoke and Fire Alarms.
Protection from Smoke, Carbon Monoxide and Natural Gasses
USI Combination Alarms are an excellent choice for those searching for layered protection against multiple threats. The installation of a standalone smoke or carbon monoxide alarm may limit homeowners into selecting one type over the other.
Stay Safe During the Winter Months with USI Combination Alarms
The winter months carry a significantly increased risk for homeowners seeking to protect themselves and their loved ones from the very real and often lethal attributes of fire and carbon monoxide. USI Store offers all of the necessary equipment required to keep your family and home safe from fire, smoke and carbon monoxide during the winter season.
USI Smoke Alarms: Industry Defining Technology at a Superior Price
Reliable smoke and fire detectors don't have to cost you a fortune. Universal Security has manufactured an cost effective line of ionization, photoelectric, dual sensing and universal smoke sensing alarms at a fraction of the cost of other competitors.
USI Fire Prevention Week Sale, with Universal Smoke Sensing and M Series Smoke and Fire Alarms
Shop for fire alarms and smoke detectors during fire prevention week and save 25% off your order.
Ten Year Sealed Battery Alarms, No Hassle / Long Lasting Protection
USI's collection of Smoke and Fire Alarms and Carbon Monoxide Alarms that utilize a sealed battery model that allows for ten years unwavering protection.
Safeguard your Household with Room Specific USI Alarms
Gain whole house protection from smoke, fire and carbon monoxide with Universal Security's line of room designation alarms. Bedroom Smoke Detectors, Hallways Smoke & CO detectors and Kitchen Smoke Detectors.
Make Sure You Are Compliant With Current Smoke Alarm Laws & Legislations With USI Hardwired Alarms
The USI Store's online collection of Hardwired Smoke Alarms has been thoroughly tested to meet and surpass the qualifications set by state laws and legislations. The USI Electric Hardwired Ionization Smoke and Fire Alarm with Long Life Battery Backup is an excellent example of the USI brand's commitment to utilize multiple technologies to ensure optimal safety.
Introducing the New USI Store: New Look, More Features, Revolutionary USI Technology
USI Smoke and Fire Alarms are available in three differing categories that include: Ionization Smoke Alarms, Photoelectric Smoke Alarms and Universal Smoke Sensing Technology Alarms. USI Carbon Monoxide Alarms are offered as standalone models and Combination Alarms that are capable of simultaneously detecting the presence of smoke and carbon monoxide.
Carbon Monoxide Is Still A Danger In The Summer Months - Get Protected With USI CO Detectors
While the winter months are usually associated with a higher number of incidents involving carbon monoxide, the summer months carry a collection of their very own risks linked to the presence of CO. Often referred to as the "silent killer", carbon monoxide is the leading cause of deaths attributed to poison in the United States.
Universal Smoke Sensing Technology: Dual Protection in One Alarm
The integration of brand specific U.S.S.T. technology ensures dual protection as homeowners will be alerted to the presence of both fast flaming and slow smoldering fires. U.S.S.T. Detectors simplify the process of selecting the correct alarm as they enable access to a patented microprocessor technology that allows for maximum overall protection.
The Benefits of Hardwired Smoke Alarms & Carbon Monoxide Detectors by Universal Security Instruments
Hardwired smoke and co alarms with battery backups give you the most reliable solution for home fire and co poison safety. USI offers a variety of easy to install detection products to suite your needs.
Universal Security Instruments Most Popular Smoke & CO Detectors
Find the most popular and cost effective smoke alarms or carbon monoxide detectors by Universal Security Instruments.
Secure Whole Home Protection with USI Smoke, Fire & CO Bundles
Universal Security Instrument alarm bundles represent a convenient and affordable means of safeguarding your entire household from the many dangers presented by smoke and carbon monoxide. Incorporating the themes of performance, accessibility and steadfast reliability, USI Smoke and Fire Alarms set an industry standard for quickly recording and responding to the presence of smoke.
Protect Your Family from Deadly Carbon Monoxide This Winter
The fall and winter months increase the susceptibility of homeowners looking to secure that much sought after peace of mind in preventing disaster. Universal Security Instruments recognizes the many dangers associated with CO and has outfitted its online store with a wide selection of carbon monoxide alarms.
The Launch of the Universal Security Store Offers Users an Interactive Format to Purchase Superior Home Safety Products
The new universal security store offers patented technology smoke alarms and fire detectors. Gain maximum protection from a brand you can trust with usi smoke, fire and co alarms.
USI Universal Smoke Sensing Alarms Continue to Raise Industry Standards
USI's series of innovative Universal Smoke Sensing Alarms proves this point emphatically by incorporating a microprocessor that's capable of recording incredibly accurate detection results while minimizing nuisance alarms.
