Universal Security Instruments MIC1509S 3-in-1 Smoke & CO Alarm — 10-Year Sealed Battery, White

Meet the MIC1509S 3-in-1 universal smoke sensing and carbon monoxide alarm from Universal Security Instruments. This white, corded-electric device combines smoke detection and CO sensing in one compact unit, backed by a 10-year sealed battery. It offers dependable alerts without frequent battery changes, helping households stay prepared.

Designed for modern homes, apartments, dormitories, and other living spaces, the MIC1509S features smart alarm technology and microprocessor intelligence that minimize nuisance alarms while maintaining vigilant protection. Temperature and humidity compensation fine-tunes sensor readings so the unit behaves predictably across seasons and rooms.

Smart protection that adapts to your space

Key benefits at a glance:

• 3-in-1 detection covers smoke and carbon monoxide, with environmental compensation for more reliable alerts.
• Smart alarm technology and microprocessor control reduce false alarms in busy households.
• 10-year permanent power via sealed alkaline batteries, offering long-term operation and easier disposal than some lithium designs.
• Simple installation with a pull-tab battery access and a deactivation key for safe handling when upgrading or disposing.
• Backed by a 10-year limited warranty for added peace of mind.

Practical uses and easy upkeep

Practical use scenarios include living rooms, hallways near sleeping areas, and entryways where early warnings matter. The unit is well-suited for rental homes and multi-unit buildings where consistent power and simple maintenance are important.

From the maker, a company with decades of heritage in home safety, the MIC1509S emphasizes reliable performance and thoughtful design. Its durable white housing blends with most interiors while delivering steady protection when you need it most.