Eye spy The Door Spy(R) is a four-way security door viewer that allows the user to view clearly--forward, right, left, and below--by rotating the eyepiece. It provides full 180-degree visibility (90% distortion free) without opening the door. The patented UL-listed fire door viewer is constructed of steel, Pyrex lenses, and ABS plastic and is available in various colors and metallic finishes. Originally developed for use by security-conscious apartment dwellers, Door Spy is useful for ...
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