What Should I Know About This Smoke Alarm?
The USI 2-in-1 Smoke & Fire Alarm is designed for long-term safety with smart features that help reduce nuisance alarms and improve early detection. This unit is hardwired for reliable operation and includes a non-replaceable, 10-year lithium backup battery. It also supports interconnected alarms for comprehensive coverage throughout the home. Enhanced by a voice message system and a Smart Silence feature, it offers peace of mind and user-friendly functionality.
Key Areas Covered:
Model Number: USI/SM/HW10YR/P and USI/SM/HW10YR/P/3
Product Overview: Hardwired smoke alarm with 10-year battery backup, voice alerts, Smart Silence, and interconnect capability for broader safety.
Specifications: Detailed below
Features & Benefits
Installation Requirements
FAQs
Usage & Tips
Specifications:
Power Source: 120VAC with 10-Year Sealed Internal Lithium Battery
Operating Temperature: 40°F – 100°F (4.4°C – 37.8°C)
Dimensions: 6.1 in. diameter x 1.6 in. depth
Voltage: 120V AC, 60Hz, 30mA max
Warranty: 10 years (from date of purchase)
Rated Life: 10 years
Mount Type: Ceiling or wall mount
Safety Rating: Conforms to UL STD 217
Audible Alarm: ≥85dB at 10 feet
Detection Range: Up to 430 ft² (40 m²)
Sensor Type: Multi-Criteria Optical Smoke Sensor
Humidity Range: 10% – 95% RH (non-condensing)
Features & Benefits:
Voice alert system provides clear verbal warnings in English and French.
Smart Silence feature temporarily silences nuisance alarms (like smoke from cooking).
Interconnects with up to 18 compatible devices, enhancing household coverage.
Maintenance-free 10-year battery. No replacement needed.
Memory recall alerts you to previous alarm events for better hazard awareness.
LED indicators for power, fault, and alarm status.
Installation Requirements:
Junction box (UL-listed or recognized)
Non-switched 120V AC circuit
Installation away from vents, windows, and high-humidity areas
Must not be installed recessed or in garages
FAQs
Q: Can I replace the battery?
A: No. The battery is sealed and designed to last 10 years. Replace the entire unit at end-of-life.
Q: Will this alarm work during a power outage?
A: Yes. The built-in lithium battery provides backup power.
Q: Can I interconnect this with other brands?
A: Only interconnect with compatible hardwired USI alarms as listed by the manufacturer.
Usage & Tips:
Test the unit weekly using the Test/Silence button.
Keep away from steam-heavy environments and cooking areas.
Do not paint or cover the unit, as this may block smoke entry.
Practice a fire escape plan with your family at least twice a year.