Photoelectric Smoke Alarm, Battery Operated, ABS Fire-Proof Material, LED Indicator, Wall or Ceiling Mount, 9V Battery, UL217 Standard

PHOTOELECTRIC DETECTION: Uses optical principles to detect smouldering fires faster than ionisation counterparts, offering high sensitivity and stable performance. EASY INSTALLATION: Mounts independently on ceilings or walls with an included bracket and screws — no debugging required for quick, hassle-free setup. SMART ALERT SYSTEM: Features an LED light flash indicator and an 85-decibel alarm to warn occupants and prompt evacuation when smoke is detected. BATTERY POWERED: Operates on a 9V DC battery (included), suitable for homes, shops, schools, offices, and storage areas with 10%–90% relative humidity. DURABLE CONSTRUCTION: Shell is made from ABS fire-proof material with a dust-protective cover, and sensitivity meets the UL217 standard for reliable operation.