causing substance: PC plastic and aluminum Installing a window barrier at a door, window, passageway, etc. Strong anti-jamming capabilities, excellent component selection, and overall stability are all accompanied by a high-grade aluminum alloy shell. It is wired, appropriate for various settings, and works with alarm hosts of any brand. All-weather outdoor use in the presence of rain, fog, and snow Small animals, birds, and other small objects can't cause false-positive results thanks to the tamper-proof and shear-mobile, double-beam recognition principle. 360-degree stepless rotation, quick, precise focus, distinctive terminals, easy installation, and debugging AGC circuit design, high sensitivity, and caution to avoid three-gear adjustable Simple wiring, alignment, or lack of instructions for a buzzer sound Application areas include clubs, financial institutions, businesses, families, and senior villas.