What Are the Specifications of the 2-in-1 Smoke & Fire Alarm?
This 2-in-1 Smoke & Fire Alarm is designed with photoelectric sensing technology to detect slow-smoldering fires, giving you an early warning in emergencies. A 10-year built-in battery means no replacements or maintenance, just long-lasting peace of mind. Ideal for bedrooms, hallways, basements, and every level of your home, it offers simple installation, reliable alerts, and trusted protection without the hassle.
Key Areas Covered:
Model Number: USI/SM/10YR/MINI, USI/SM/10YR/MINI/3
Product Overview
Specifications
Features & Benefits
Installation Requirements
FAQs
Usage & Tips
Specifications:
Power Source: Built-in DC3V (CR-2/3AZ) Lithium battery (non-replaceable)
Operating Temperature: 40°F – 100°F
Dimensions: Compact MINI size (exact dimensions not listed)
Voltage: 3v
Alarm Volume: >85 dB at 10 feet (3 meters)
Alarm Sensitivity: 1.59–2.80%/ft.
Smoke Alarm Sound Pattern: Temporal 3 pattern with flashing red LED
Silence Period: Approx. 8 minutes
Warranty: 10 years (from date of purchase)
Rated Life: 10 years
Safety Rating: UL 217, 9th Edition Compliant
Features & Benefits:
Photoelectric sensor for faster detection of slow-burning fires
Maintenance-free design with a sealed 10-year battery
Easy-to-use test and silence button
Loud 85 dB alert with visual LED indicator
End-of-life signal for timely replacement
Compact and low-profile for discreet placement
Compliant with National Fire Protection Association (NFPA) guidelines
Installation Requirements:
Suitable for all levels of a home, including bedrooms, hallways, and basements
Avoid kitchens, garages, bathrooms, and areas near vents or high airflow
Mount on ceiling or wall using included screws and anchors
Activation by pulling the battery tab before installation
Temperature must remain between 40°F and 100°F
FAQs
Q: Does this alarm detect carbon monoxide?
A: No, it only detects smoke and fire. For CO detection, use a combo alarm.
Q: Can I replace the battery?
A: No. It has a sealed, non-replaceable battery designed to last 10 years.
Q: What does a chirping sound every 48 seconds mean?
A: This indicates a low battery or end-of-life. The unit must be replaced.
Q: How do I silence the alarm during false alerts?
A: Press the test button to silence it temporarily (approx. 8 minutes).
Usage & Tips:
Test weekly using the test button
Clean yearly using a soft-brush vacuum. Do not open the unit
Replace the alarm after 10 years or when end-of-life chirps begin
Install alarms at least 10 feet from cooking appliances to prevent false alarms