What Are the Specifications of the 3-in-1 Smoke, Fire, and Carbon Monoxide Alarm?
What does this 3-in-1 alarm do for your home safety?
This advanced safety device is designed to provide reliable, round-the-clock protection from smoke, fire, and carbon monoxide threats. Combining Universal Sensing Plus® Multi-Criteria Technology with a sealed 10-year battery backup, it ensures peace of mind, even during power outages. Built to meet the latest UL standards, it helps reduce false alarms caused by everyday cooking and environmental factors.
Key Areas Covered:
Model Number: USI/SMCO/HW10YR
Product Overview:
3-in-1 alarm for smoke, fire, and CO detection. Features sealed 10-year lithium-free power supply and tamper-resistant installation.Specifications
Features & Benefits
Installation Requirements
FAQs
Usage & Tips
Specifications:
Power Source: Hardwired with 10-Year Sealed Battery Backup
Operating Temperature: 40°F – 100°F (4.4°C – 37.8°C)
Dimensions: Not explicitly stated (standard ceiling-mount design)
Voltage: 120V AC, 60 Hz, 100mA max
Warranty: 10 years (from date of purchase)
Rated Life: 10 years
Mount Type: Ceiling or wall, electrical junction box required
Safety Rating: Conforms to UL 217 8th Edition and UL 2034 4th Edition
Features & Benefits:
Smart Alarm tech minimizes false alarms from cooking or steam
Quick Find® Alarm Origination pinpoints the source alarm
Sealed, tamper-proof battery backup means no replacement necessary
Interconnect up to 24 USI-compatible devices
Lithium-free battery with Duracell® Duralock Power Preserve™
Loud 85 dB alarm signal
Meets latest fire and CO detection standards
Installation Requirements:
Requires a 120V AC circuit (cannot be on a dimmer, switch, or GFCI)
Should be mounted on UL-listed junction box
Can be wall- or ceiling-mounted
Avoid locations near HVAC vents, kitchens, or garages
Must not be exposed to extreme temperatures or moisture
FAQs
Q: Does this alarm need battery replacement?
A: No. It features a sealed, non-replaceable 10-year backup battery.
Q: Can this alarm connect with others in the house?
A: Yes, it supports interconnectivity with up to 24 compatible alarms.
Q: How loud is the alarm?
A: It sounds at 85 decibels from 10 feet, enough to wake sleeping individuals.
Usage & Tips
Place one alarm on every floor and outside each sleeping area.
Test weekly using the test button to ensure functionality.
Clean monthly with a soft vacuum attachment. Avoid chemical sprays.
Replace the unit after 10 years or if the end-of-life chirp sounds.