What Are the Specifications of the USI/SM/10YR Smoke & Fire Alarm?
The USI/SM/10YR Smoke & Fire Alarm with Universal Sensing Plus® delivers advanced fire detection in a single, reliable device. Designed to detect both fast-flaming and slow-smoldering fires, it minimizes nuisance alarms from cooking and humidity while maintaining full protection. With a 10-year sealed, lithium-free battery, it requires no battery replacements for its entire lifespan. Meeting UL217 8th Edition standards, this alarm is built for dependable, long-term performance.
Key Areas Covered:
Model Number: USI/SM/10YR, USI/SM/10YR/3
Product Overview
Specifications
Features & Benefits
Installation Requirements
FAQs
Usage & Tips
Specifications:
Power Source: Permanent, lithium-free, sealed battery (10-year life)
Operating Temperature: 40°F – 100°F (4.4°C – 37.8°C)
Humidity Range: Up to 95% RH, non-condensing
Alarm Volume: 85 dB at 10 ft
Warranty: 10 years from date of purchase
Rated Life: 10 years from activation
Safety Rating: Conforms to UL Std. 217, 8th Edition
Features & Benefits:
Detects both fast-flaming and slow-smoldering fires
10-year maintenance-free power supply
QUICK FIND® feature locates the originating alarm
Tamper-resistant mounting bracket
Silence feature for temporary reduction in sensitivity
End-of-service life notification for timely replacement
Meets NFPA safety recommendations
Installation Requirements:
Ceiling or wall mount per manufacturer guidelines
Avoid high humidity, garages, and air vents
Pull activation tab before use
Screws and anchors provided
FAQs:
Q: Do I need to replace the battery?
A: No. The sealed battery lasts the full 10 years.Q: Can I wall-mount this alarm?
A: Yes, as long as it’s placed within 12 inches of the ceiling.Q: How will I know it’s time to replace?
A: You’ll hear two chirps every 60 seconds and see a red LED flash.
Usage & Tips:
Test weekly for proper function
Clean monthly with a vacuum or soft brush
Do not paint or spray cleaners on alarm
Replace after 10 years of use