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In a measuring device, the combination of a supporting member, a plurality of material‐en‐gaging elements mounted thereon, one of said engaging elements being pivotally mounted on the supporting member, an electrical signal to electrically indicate movement of the pivoted element to a predetermined position, a make and break contact device for operating the electrical signal actuated by said pivoted element, another of said engaging elements being slidably mounted relative to the pivotally mounted engaging element, means to move said slidable element, means to indicate movement of the sliding element, and a scale co‐operating with said slidable element to measure the elasticity of said material under a predetermined force.