A configurable lens cover configured to be disposed over a lens of a sensor to control an area monitored by a sensor and/or to block light from undesirable directions from striking the lens of the sensor. The configurable lens cover includes a collar that has an inner edge which defines a central opening. Further, the configurable lens cover includes detachable panels that extend angularly and inward towards a central axis and the central opening of the configurable lens cover from the inner edge of the collar. The detachable panels may be partially separated from each other along the side edges and top end of each detachable panel. Furthermore, the configurable lens cover includes perforations formed adjacent a bottom end of each detachable panel that is coupled to each other and the collar. The perforations define a living hinge along which each detachable panel is breakable.