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HM-642 Scratch-A-Track Motion Monitor tracks thermal movement, structural settlement, load-induced deflections and other changes in relative positioning. The monitor is compact, lightweight and weather-resistant, and designed to provide a clear, continuous graphic record of total relative movement of adjacent surfaces. Can be mounted over a crack, joint or other void, and anchored with a user-supplied concrete screw, or an adhesive such as glue or epoxy.
The Scratch-A-Track Motion Monitor works with HM-643 Scratch-A-Track Monitor Recording Pads, plastic single-use recording pads that are bonded to the monitor surface with super-glue or epoxy to record data and create a permanent record of movement.
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