This is a simple camera mount, designed to place your YI brand WiFi security camera on the ceiling or on a wall. Add an m3 screw in the hole on the ring to tighten the camera in position when mounted. Do not overtighten the m3 screw as this may cause the mounting screws to pull out slightly if they are mounted in plaster from the pressure. The camera has a rubberized part on the base that will provide plenty of grip against the mounting surface with less pressure from the m3 screw. So you don't have to tighten it really hard to lock your camera position.
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