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  • 2-in-1 Smoke and Fire Smart Alarm provides 10 years of continuous protection against fast flaming and slow smoldering fires.
  • New Security Sensing Plus® multi criteria smoke & fire sensor uses AI-artificial intelligence techniques that can differentiate and classify smoke & fire profiles.
  • 10 year permanent power via lithium-free alkaline battery (included) will never have to be replaced throughout the life of the alarm.
  • Built-in microprocessor eliminates virtually all 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
  • USI 8th Generation Smoke Detector meets the latest industry standards.

Manuals

The Universal Security Instruments AMI3051SB 2-in-1 Sensing Plus® Smoke and Fire 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. Perfect for new or replacement installations, this USI Smoke Detector is suitable for houses, apartments and mobile homes. The sealed battery (included) will never have to be replaced throughout the life of the alarm, 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 smoke and fire 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 smoke detector's battery (approximately 10-years from activation).

Perfect for replacing existing USI Smoke Detectors, this smoke and fire alarm features a large mounting base to cover imperfections in drywall and the option to replace retrofitting applications. The quick activation battery pull tab makes it easy to install while the deactivation key switches the alarm off and makes the batteries safe for disposal. Once the 10 year smoke and fire alarm 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 and meeting the latest UL 217 8th Edition for smoke detection, this smoke and fire detector features approvals from the California State Fire Marshal and Federal Housing Authority (FHA) for ultimate peace of mind. Its innovative Sensing Plus® Multi-Criteria Detection provides a trifecta of benefits: minimizing nuisance alarms from cooking, detecting both slow-smoldering and fast-flaming fires (including those in polyurethane foam), and remaining operational even during electrical surges.

For maximum protection, install a USI Smoke Detector inside every bedroom, outside every sleeping area and on all levels. The USI AMI3051SB 2-in-1 Sensing Plus® Smoke and Fire 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.

smoke alarm ul 217 standard compliant

AMI3051SB12 year battery smoke alarm
HOW OFTEN SHOULD I REPLACE THE BATTERY IN MY SMOKE, CO AND NATURAL GAS ALARMS?
Many of our alarms come with a 10-year sealed Permanent Power battery that never needs replacing during the 10 year life of the alarm. Batteries in non sealed alarms should be replaced at least once a year or when the low battery signal sounds. Permanent Power battery technology helps keep you safe, because working smoke alarms are an important factor in surviving a home fire.
WHERE SHOULD I INSTALL SMOKE ALARMS?
Early detection of smoke, carbon monoxide, and natural gas is key to saving lives. The National Fire Protection Association (NFPA) recommends installing a smoke alarm on every level of your home, including finished attics and basements. You are also encouraged to install a smoke detector inside every bedroom and at the top of certain stairways.
DO I NEED FOUR KINDS OF DETECTORS?
You never know what kind of hazard will strike your home, or when. That's why we recommend technology that can detect carbon monoxide (CO) and natural gas as well as smoke and fire. You'll get the most protection from devices that can quickly and accurately detect and respond to a range of threats.
WHAT ARE "NUISANCE ALARMS"?
A smoke alarm that goes off when there's no emergency is annoying. According to the National Fire Protection Association (NFPA), such "nuisance alarms" are the leading reason why homeowners intentionally disable their smoke detectors. Yet doing so can be deadly. A survey conducted by the NFPA found that smoke alarms sounded in only half of the home fires reported to U.S. fire departments, and almost two-thirds of home fire deaths resulted from fires in homes with no smoke alarms or no working smoke alarms.
WHAT ARE 8th GENERATION ALARMS?
8th generation smoke alarms, featuring advanced multi-criteria smoke and fire sensors, represent a significant leap in fire protection technology. Complying with UL 217 8th Edition standards, USI 8th edition alarms incorporate the latest innovations to enhance fire detection. USI Sensing Plus technology, a hallmark of 8th generation detectors, offers superior protection against both fast flaming and slow smoldering fires while significantly reducing nuisance alarms.
IS THIS AN 8th GENERATION SMOKE DETECTOR?
Yes, all USI Sensing Plus Detectors meet new UL 217 8th Edition requirements for smoke alarms
Product Details

new sensing plus smoke alarms

Product Specs
UPC:
042741830515
MPN:
AMI3051SB
Category:
Smoke Alarms
Product Manuals

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AMI3051SB customer reviews

Overall Rating

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4 customers recommend this product
USI Sensing Plus Smoke and Fire Alarm With 10 Year Battery Reviews
Doug B
March 21, 2024
Verified Purchase
AMI3051SB smoke and fire alarm

Ordered six of these online. Spoke to a salesperson first, very helpful. Units were very simple to install. Much more comfortable knowing these are a combination alarm.

Derek N
February 14, 2022
Verified Purchase
Great for bedrooms

These units replaced several older ones over 10-years old... advanced, compact, and easy to install and test.

Leslie P
February 5, 2022
Verified Purchase
Sensing Plus in 2022

After thorough review of brands and features I chose Sensing Plus because it has the most current 2022 industry standards for smoke alarms. They were easy to install in the same location as the old ones that were other brands. I ordered directly from USI Store to ensure they weren't expired or had been sitting in inclement weather.

Adam S
April 26, 2021
Verified Purchase
Good for high humidity areas

I've been looking for a detector that doesn't give error beeps when in high humidity. Given my location in the tropics this works great so far!

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