USI Hardwired Smoke, Fire and Carbon Monoxide Detector With 10 Year Sealed Battery Backup - AMIC1510SC
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- 3-in-1 Smoke, Fire & Carbon Monoxide Alarm provides 10 years of continuous protection against fast flaming, slow smoldering fires and carbon monoxide
- New Security Sensing Plus® multi criteria smoke & fire sensor uses AI-artificial intelligence techniques that can differentiate and classify smoke & fire profiles.
- Hardwired alarm with a 10-year lithium-free alkaline battery backup that provides a decade in peace of mind even when the power goes out.
- Quick Find® Alarm Origination easily identifies first alarm to sound in an interconnected system.
- Built-in microprocessor virtually eliminates nuisance alarms.
- Maintenance free battery power provides 10 years of safety protection.
- Power and alarm LED's
- Test/silence button
- Loud 85 dB alarm
- Tamper-proof design prevents other from tampering with alarm's battery.
- 10 year warranty on both battery & alarm
- Interconnectable with up to 24 compatible devices
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USI 8th Generation Smoke Detector meets the latest industry standards.
The USI AMIC1510SC 3-in-1 Sensing Plus® Hardwired Smoke, Fire & Carbon Monoxide Alarm provides 10 years of continuous protection against deadly threats in the home. New Sensing Plus® Multi-Criteria Detection provides the benefits of both photoelectric and ionization alarms in one device to protect against fast flaming and slow smoldering fires. This combination alarm also offers protection against the silent killer - carbon monoxide - making it a 3-in-1 detector. The ideal addition for new or replacement installations, Universal Sensing Plus Alarms® are suitable for houses, apartments and mobile homes in every room.
This 3-in-1 alarm implements a 10 year lithium-free battery (included) that will never have to be replaced throughout the life of the detector, giving you a decade's worth in peace of mind even in the event of a power outage. 10 Year Permanent Power also saves money from battery replacements (up to $38.00 over the 10-year life of the alarm), eliminates annoying low battery chirps and helps the environment by reducing environmental waste from disposed batteries. This combination detector features microprocessor intelligence that assists in completely eliminating nuisance alarms, a single silence/test button to quiet a non-hazardous alarm and an end-of-service life warning that sounds when it's time to replace the battery (approximately 10-years from activation).
Perfect for replacing existing alarms, Universal Security Sensing Plus® Combination Detectors feature a large mounting base to cover imperfections in drywall and the option to replace retrofitting applications. The quick activation battery pull tab allows for easy installation while the deactivation key switches the alarm off and makes the batteries safe for disposal. Once the 3-in-1 combination detector is deactivated, the tamper resistant feature turns on to prevent deactivated alarms from being reinstalled.
Bring Your Home up to Code with 8th Generation Alarms
Exceeding industry standards, this 8th generation alarm meets the latest UL 217 (smoke) and UL 2034 (carbon monoxide) standards, with approvals from the California State Fire Marshal and FHA. Its innovative Sensing Plus® Multi-Criteria Detection minimizes false alarms, detects polyurethane foam fires, and offers immunity to power surges for comprehensive protection.
For maximum protection, install a USI Electric Combination Detector inside every bedroom, outside every sleeping area and on all levels. The USI AMIC1510SC 3-in-1 Sensing Plus® Hardwired Smoke, Fire & Carbon Monoxide Alarm comes with a 10-year limited warranty that covers both the battery and alarm.

Meets New Laws & Legislations
This alarm exceeds industry standards, and is listed to UL Standard UL 217 8th Edition and is California State Fire Marshal approved.
Hardwired smoke and carbon monoxide (CO) detectors provide a integrated solution for protecting a home from two of the most significant life-safety threats. These dual-sensor combo detectors are permanently wired into a home's electrical system, ensuring a continuous and stable power source for both smoke and CO detection. This hardwired connection offers superior reliability, as the detectors are always on and actively monitoring for hazards without the risk of a dead or forgotten battery. A key benefit is the ability to interconnect these detectors with other compatible units throughout the house. If one detector senses a threat - whether it's smoke from a fire or a dangerous level of CO - all linked detectors will sound simultaneously, providing an early, widespread warning to all occupants. Many of these hardwired units also include a battery backup, acting as a crucial failsafe to ensure the alarm remains fully operational during a power outage. This integrated, multi-threat approach offers the highest level of dependable and comprehensive protection for your home and family.
Advantages of a Hardwired Smoke and Carbon Monoxide Alarm
- Continuous, Reliable Power: The primary advantage is the constant, stable power source directly from your home's electrical system. This eliminates the risk of an alarm failing due to a forgotten or depleted battery.
- Interconnected System: Hardwired detectors can be linked together, so if one alarm detects smoke or a high level of CO, all connected detectors will sound simultaneously. This is a critical safety feature for larger or multi-story homes, ensuring everyone receives an early warning, no matter where they are.
- Compliance with Codes: Many local building codes now require hardwired, interconnected detectors for new construction and major renovations. Installing a hardwired system ensures your home meets these modern safety standards.
- Tamper-Resistant: Because the alarm is permanently wired into the wall, it's more difficult for children or other occupants to accidentally disable or move the unit.
Advantages of a Hardwired Smoke and CO Alarm with a 10 Year Battery Backup
- Uninterrupted Protection During Power Outages: The 10-year sealed battery serves as a crucial failsafe. It ensures the alarm remains fully operational even if a power outage occurs, which is a time when CO dangers can be elevated from generators or other backup heating sources.
- Eliminates Low-Battery Chirps: You will never be woken up in the middle of the night by the irritating low-battery chirp. The long-life battery is designed to last the entire 10-year lifespan of the alarm, only signaling an "end-of-life" warning when it's time to replace the entire unit.
- Maintenance-Free: For a full decade, you can "set it and forget it." You won't have to remember to change the battery annually, saving you time, money, and the risk of operating a non-functional alarm.
- Combined Reliability: The combination of a hardwired power source and a long-life battery backup provides the highest level of dependability and peace of mind, offering the best of both worlds in home safety.

Yes, if you the alarm has a battery backup. Hardwired smoke alarms are wired directly into your home’s electrical system, but nearly all modern models - including most Universal Security Instruments alarms - also include a backup battery. This built-in battery allows the alarm to continue operating even if your home loses power, ensuring you’re protected at all times.
Power can go out during a fire for several reasons. Intense heat can damage electrical wiring, circuit breakers may trip to prevent further hazards, or flames and smoke may affect electrical panels and utility lines. In some cases, firefighters or utility crews will intentionally shut off power to keep conditions safer. Because of these possibilities, the backup battery is an essential feature - it ensures your smoke alarm will sound even if the fire itself disables your home’s electricity.
For homeowners, this means peace of mind: whether it’s a fire, a storm, or a routine power outage, your hardwired smoke alarm is designed to keep working when you need it most.
Many people assume that every smoke alarm requires a backup battery change, but most Universal Security Instruments hardwired smoke alarms are designed differently. The majority of our models feature a sealed, 10-year lithium free battery that never needs to be replaced. This long-life backup battery is permanently built into the unit, ensuring continuous protection even during a power outage.
Because the battery is sealed, there's no door or compartment for you to open. When the alarm reaches the end of its 10-year service life, the entire smoke alarm should be replaced with a new unit. This design eliminates the need for battery changes, prevents tampering, and ensures you always have reliable backup power.
If you have an older model that uses a replaceable battery, the user manual will provide step-by-step instructions. Typically, this involves twisting the alarm off its mounting bracket, opening the battery compartment, and installing a new battery of the specified type. However, if your alarm is a newer sealed-battery model, you do not need to replace the backup battery at all.
- Warranty: 10 Year Limited Warranty on both battery and alarm
- Power Source: Hardwired
- Alarm Battery: 10 Year Sealed Permanent Power Battery
- Alarm Sensor Type: New Security Sensing Plus Multi Criteria Detection Technology (Ionization & Photoelectric) ;+ Electrochemical CO Sensor
- ETL Certifications: UL 217 8th Edition & UL 2034 4th Edition
- Manufacturing Credits: ISO 9001 certified factory & CSFM listed
- Packaging: Blister Card Packaging
- Product Dimensions (W x H x D): 5.63 x 5.63 x 1.75 in.
- Product Weight: 0.42 lbs
If you are interested in ordering a large quantity of items you may qualify for volume pricing discounts. Volume Discount Pricing is a great way for customers to save big on large, bulk orders of most items available in our store. Please send a bulk order request to our friendly sales staff so they may create a quote and provide personal service for your order! You will receive a response within 1-2 business days and our office hours are Monday through Friday, 8am-5pm CST.
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Hardwired Combo Smoke and Carbon Monoxide Alarm Reviews
These Units are quite easy to install in place of older non-Universal units.
I have tried everything, every brand (except Universal) since I've lived in my house, now over 40 years, and have had nothing but false alarms and irritating resets...usually at something like 3 a.m. So far, nothing but peace and quiet from these. I like the promise of new technology, especially because the "old" technology wasn't very satisfying. Came nicely packaged. Two minor complaints: 1) They should come with at least the larger headed screws for base installation, because I had to scrounge up some from my workshop that had heads large enough to hold the base to the ceiling boxes; and 2) Although the hard wire connectors are supposed to be universal (and they well might be), I found the fit to be just a little too tight, so I had to take a couple of minutes to splice in the ones that came with the Universals. Quality appears to be high...and thank God I don't have to listen to some nagging voice calling out "Fire!" every couple of seconds.
I needed a whole house replacement for new construction detectors that were at end of life and got a good deal on upgraded 10 year battery models and got a few more carbon monoxide detectors to cover every bedroom and added a natural gas detector. Replacing the ceiling mount bracket and a couple wiring pig tails was not too hard. Very happy to not have to replace batteries and to have the best protection for my family.
It was very easy to replace my existing wired smoke detectors with these new USI combo units that detect CO, smoke, and fire. So far I'm very happy with the three USI combo units I installed. After installation, I pressed each units test button and each unit worked perfectly. This was a great investment ordering online from USI. I, also, got a discount for my first online purchase from USI.
Easy to install and works as stated. I will purchase again.
We had a builder installed USI product that needed replacement. We were happy to find this updated version which was easy to install into the existing wiring and plate. Very happy with ordering and shipping process.
Very easy to install, and looks great. With the 10-year battery backup, it's set and go and worry-free! I feel safe and well protected. Highly recommended!
Bought these to replace 14 year old smoke detectors. Easy to connect to existing wiring. Tested and working as expected.
I replaced all the smoke detectors in my house. I had excellent an experience with purchasing USI products and installing them.
I purchased from USI because they were the only ones who made a smoke alarm with both ionization and photoelectric AND a carbon monoxide detector. I put these in each bedroom to make sure my family was protected to the best of ability. I put USI's regular ionization/photoelectric detectors everywhere else. I really like that they are hardwired and will all alert together letting us know about a dangerous condition no matter where we are. I will recommend these detectors to my friends and extended family because they are first rate products and because of the excellent customer service