Battery Powered Smoke and Fire Alarm With Sensing Plus Technology - USI/SM/REP

The USI 2-in-1 Smoke & Fire Alarm is the next-generation of home safety. Equipped with advanced Sensing Plus Multi-Criteria Detection, this smart photoelectric alarm accurately differentiates between slow-smoldering and fast-flaming fires, ensuring rapid detection when it matters most. Built for continuous reliability, the compact unit is powered by an included, replaceable 9V battery to guarantee uninterrupted protection—even during local power outages. Frustrated by false alarms? USI's built-in intelligent technology actively minimizes nuisance triggers caused by everyday activities like cooking. If a non-emergency alert does occur, you can easily mute the sound using the convenient, centralized test/silence button. Fully certified to meet rigorous UL safety standards, this alarm delivers the premium performance and peace of mind your family deserves. Backed by over 50 years of industry-leading expertise, USI is a name you can trust for dependable, long-lasting home protection.

Key Features & Benefits

• Advanced Photoelectric Technology: Optimally senses dense smoke and smoldering particles. Contains zero radioactive material, making it an environmentally friendly choice.
• Simple Battery Operation: Operates on a single, easily replaceable 9V battery (included) to ensure continuous protection during local power grid failures.
• Smart Nuisance Alarm Resistance: Advanced software filters out common household cooking smoke, minimizing frustrating false alarms.
• Instant Test/Silence Control: Features an accessible center button. Briefly press to instantly silence a known false alarm for approximately 8 minutes, or hold to run a complete weekly diagnostics check.
• Loud 85dB Warning: Delivers a powerful ≥ 85dB audible alarm at 10 feet using a standard 3-beep emergency pattern accompanied by a flashing red LED.
• Low-Battery Alert: Automatically chirps and flashes every 40 seconds when battery power is low, giving you a full 7-day window to swap the battery.

Industry Standards & Compliance

This alarm is fully certified to meet strict residential building requirements:

• UL Listed: Conforms completely to UL Standard 217.
• NFPA Compliant: Meets NFPA 72 (National Fire Alarm and Signaling Code) requirements for single-station household applications.
• Federal Housing Standards: Complies with Federal Housing Authority (FHA) and Housing and Urban Development (HUD) regulations.
• Residential Approved: Perfectly suited for single-family homes, townhouses, and as localized supplemental protection inside individual apartment/condo rooms.

(Note: In new construction, most building codes typically require primary AC-hardwired interconnected systems; this standalone DC battery-powered unit is ideal for retrofitting existing construction or adding critical localized coverage to bedrooms).

Where to Install This Alarm

For full residential safety compliance, this independent alarm can be mounted to either the ceiling or the wall.

• Recommended Placement: Inside every individual bedroom/sleeping room, directly outside of sleeping areas (within 21 feet of any bedroom door), and on every single level of your home, including basements.
• Ceiling Mounting: Install at least 4 inches (10 cm) away from any side wall.
• Wall Mounting: Position the top edge of the alarm between 4 inches (10 cm) minimum and 12 inches (30.5 cm) maximum below the ceiling line.

Installation Locations to Avoid

To ensure long-term accuracy and prevent false alarms, do not place this device:

• Within 6 feet of commercial or residential cooking appliances.
• Within 10 feet of high-humidity zones like bathrooms, dishwashers, laundry rooms, or sinks.
• Directly near air returns, ceiling fans, or drafty windows/doors that could blow smoke away from the sensor.
• In dusty, dirty, or insect-infested spaces (like uninsulated garages or attics).
• Near fluorescent light fixtures, where electronic noise can interfere with the circuitry.