Combination Smoke & CO₂ Detector 3-in-1 with 10-Year Sealed Battery

Ensure round-the-clock safety with this all-in-one alarm that combines advanced smoke and carbon monoxide detection in a single, maintenance-free unit. Innovative dual-sensor technology leverages both photoelectric and ionization sensing to catch fast-flaming and slow-smoldering fires, while its built-in carbon monoxide sensor guards against the invisible, odorless threat. A 10-year sealed, non-replaceable battery means you’ll never chase down replacement cells or endure annoying chirps—just dependable protection for a decade.

Ideal for new construction or retrofit applications, this alarm installs quickly without wiring and features a one-touch silence/test button to quiet non-hazardous alerts. Built-in microprocessor intelligence minimizes nuisance alarms, and an end-of-service-life signal reminds you when it’s time to replace the entire unit. Tamper-resistant design locks out unauthorized removal, making it perfect for homes, apartments and mobile residences.

Key Features

• Three-in-one protection: smoke (photoelectric + ionization) and carbon monoxide
• 10-year sealed, non-replaceable battery—no more battery swaps or low-battery chirps
• Microprocessor-based nuisance alarm reduction
• Single silence/test button for quick muting of harmless alerts
• Automatic end-of-service-life warning after 10 years of operation
• Tamper-resistant locking mechanism prevents unauthorized removal
• Quick-activation battery pull tab for fast, hassle-free installation
• UL and ETL listings (UL 2034, UL 1484) and California State Fire Marshal (CSFM) approved