MS-3000X SKU MS-3000X-1116 The MS-3000X is the smallest readers, the MicroStar Reader measures just 3.4'' long x 1.4'' wide x 0.38'' thick (86mm x 36mm x 10mm) thick, and is designed to mount on a metal window or door frame (mullion) or directly on a wall. Read range is up to 4'' (10cm). The MiniStar Reader measures 4.3'' long x 3.0'' wide x 0.38'' thick (109mm x 76mm x 10mm), and can be mounted on a single gang electrical box or flat on a wall. Read range is up to 6'' (15cm) when mounted at least one inch off metal. If the reader is mounted using a metal electrical junction box with the thickness of the wall material separating the reader from the box, read range will be reduced. Please log in to see price or purchase this item Request an account Line Comment Special Price Features: Sleek Attractive Packages Ultra Thin Profile Smallest Door Frame (Mullion) Reader Available Better Read Range Performance Than Competing Products of Similar Size