Photoelectric Smoke Alarm AC DC

Photoelectric Smoke Alarm AC DC. Dual Power Supply: Supports AC/DC power with DC9V input and lower voltage alarm at 6.5V-7.5V. High Sensitivity Detection: Photoelectric theory with 3m detection distance for reliable smoke sensing. Strong Alarm Signal: Alarm volume exceeds 85dB with red LED flashing every 0.5 seconds during alarm. Low Power Consumption: Static current is less than 10uA, ensuring energy efficiency. Certified Safety: Meets CE and RoHS certification standards for quality and safety. Battery Low Warning: Emits low chirp sounds every 30 seconds to indicate battery replacement needed. Easy Maintenance: Features a test button for weekly checks and clear LED status indicators.