*Support sound and flash alarm
*Full snap-fit patent structure of easy to install and no need commission
*Elegantly designed, aesthetically pleasing, dust-proof
*Light top designed principle with alarm light 360 visual
*Built-in whistle with loud voice that alarm by sound and flash at the spot
*Adopting self-adopting technology that can make dynamic compensation for environment variation and aging components to extend using time
*Owning self-test function can test inner circuit real time to keep detector lasting working fine.
*Adopting ultra-low power micro technology and photoelectric principle making standby time for long
*Adopting high-performance photo of a collection of two bi-direction scattering patent technology, stable, reliable, accuracy
*Low battery alarm function, when the battery voltage lower than 6.8V. It will make warning tone out
*The housing is designed to full rotary detachable buckle of easy maintenance