Dufuls 4-Pack 2-in-1 Smoke & CO Detector with LCD Display

Protect your home with the Dufuls 4-Pack 2-in-1 Smoke & CO Detector combo. Each compact unit houses two sensors—a high-sensitivity photoelectric smoke sensor and a precise electrochemical carbon monoxide sensor. They operate independently within the same housing, so you won’t have to guess which condition is changing. This separation helps you respond with confidence, understanding when smoke is present versus when carbon monoxide levels rise. The design prioritizes real-world usability, balancing fast detection with straightforward maintenance, all without relying on gimmicks or prompts that overstate results.

Real-time insights at a glance

The large LCD screen displays current CO concentrations, while a bold red LED and an audible 85 dB alarm alert you to any detected hazard. As air quality shifts throughout the day, the display updates, giving you a continuous read on the environment instead of a single, static alert.

• Dual sensing architecture: separate smoke and CO readings for clarity
• Independent operation minimizes cross-interference between sensors
• Real-time data on the LCD keeps you informed at a glance

Fast, tool-free installation

Powered by a 9V battery, these detectors do not require wiring, and mounting is straightforward with the included screws and brackets for walls or ceilings. The compact form fits common home layouts without crowding the space.

• 9V battery power eliminates wiring
• Screws and brackets included for quick mounting
• 10-year sensor lifespan with 360-degree intake design for long-lasting monitoring

Smart coverage for everyday safety

To maximize protection, place units in living rooms, bedrooms, hallways, garages, and basements. The 4-pack makes it easier to create a network that covers key zones, reducing blind spots and providing consistent alerts throughout the home.

What you get: four detectors in one pack, plus essential mounting hardware to get you up and running quickly. Consider placing detectors in key corridors and near sleeping areas for steady awareness across the home.