First Alert Combination Smoke & Carbon Monoxide Alarm SMICO100 — Battery-Powered with Precision Detection to Reduce False Alarms

This compact 2-in-1 unit combines smoke and CO monitoring into a single, easy-to-install alarm designed for home use. Built with First Alert’s upgraded sensing technology, the SMICO100 reduces false triggers from cooking while still providing timely alerts when smoke or dangerous carbon monoxide levels are present. Battery operation removes the need for hardwiring, making it suitable for bedrooms, hallways, rental units, and older homes where wiring changes are impractical.

How does this alarm reduce nuisance alerts from cooking?

The SMICO100 uses First Alert’s Precision Detection algorithms to better distinguish between harmless cooking particulates and actual combustion particles that indicate a fire. That helps cut down on false alarms without compromising the device’s ability to warn you when conditions are truly dangerous. This balance makes it more reliable for placement near kitchens or open-plan living areas.

• Advanced sensing reduces false alarms from ordinary cooking smoke
• Sensor tuning prioritizes early detection of real fire signatures
• Suitable for near-kitchen installation with fewer unnecessary silences

What kind of power and maintenance does the SMICO100 require?

This model runs on replaceable batteries so no electrical wiring is required. It includes a test/silence button for monthly checks and temporary muting of a nuisance alarm, plus an end-of-life signal to remind you when the unit should be replaced. Routine battery changes and periodic testing keep the alarm ready to respond.

• Battery-operated for simple, tool-free installation
• Test/silence button for quick functionality checks and temporary silencing
• End-of-life warning indicates when to replace the alarm unit

How does it detect both smoke and carbon monoxide effectively?

The SMICO100 integrates separate sensing elements and processing for smoke and CO detection into one housing. When either sensor registers a hazardous condition, the alarm emits a loud, unmistakable alert to prompt evacuation or investigation. Combining both functions into a single, certified device reduces the number of units needed in a home while covering two distinct hazards.

• Dual detection covers smoke and carbon monoxide in one device
• Audible alarm designed to alert occupants throughout a room
• Meets current industry standards for combined smoke/CO alarms

Where should I place the SMICO100 in my home?

Install the alarm on ceilings or high on walls in sleeping areas, hallways that serve bedrooms, and near potential CO sources such as attached garages or fuel-burning appliances. Avoid installing directly above kitchens or bathrooms where steam and heavy cooking smoke could still affect sensors, but keep placement close enough to provide early warning to sleeping occupants. Follow local building codes and the manufacturer’s placement recommendations for best coverage.

• Mount in bedrooms, hallways, and near fuel-burning appliances
• Avoid immediate proximity to showers or stovetops to minimize interference
• Check local codes and First Alert guidance for proper spacing

Who is this for: The First Alert SMICO100 is aimed at homeowners, renters, landlords, and property managers who want straightforward, combined smoke and carbon monoxide protection without rewiring. It’s a practical choice for older homes, temporary housing, or any location where a battery-powered, standards-compliant alarm with reduced nuisance alerts is preferred.