Why Dual Protection Matters

Every year, 3,700+ deaths occur in US homes from fires and carbon monoxide (CO) poisoning (NFPA 2024). While fire consumes visibly, CO is a silent killer – colorless, odorless, and deadly at just 70 ppm (parts per million).

Critical Insight:

• Smoke detectors save lives by detecting smoldering fires (photoelectric sensors) or fast-flame fires (ionization sensors).

• CO detectors use electrochemical sensors to alert you when gas levels become toxic – crucial because early symptoms (headaches, nausea) mimic the flu.

Technology Evolution: Smarter, Faster, Safer

Modern detectors solve historical limitations:

1. Hybrid Sensors

   • Combined smoke/CO detectors reduce costs and space while providing 360° coverage with technologies like OptiPath.

2. False Alarm Prevention

   • Photoelectric sensors + AI algorithms minimize cooking false alarms. 

3. Connectivity & Smart Features

   • Wi-Fi-enabled models send alerts to your phone.

   • Wireless interconnectivity syncs alarms across your home (up to 24 devices).

4. 10-Year Sealed Batteries

• products from Hangzhou Deheng Smart Electrc eliminate annual battery replacements while ensuring constant protection.

Maintenance Checklist

Ensure your detectors stay functional:

1. Monthly: Test alarms using the button.

2. Annually: Vacuum sensors to remove dust.

3. Every 10 Years: Replace entire unit (sensors degrade).