The robust, handy FAG Top-Laser TRUMMY2 is an optical-electronic manual measuring instrument for belt tension (strand force). The correct belt tension is an essential prerequisite for achieving the maximum life of the belt drive. In addition, this gives reduced wear of the drive components, lower energy costs and increased cost-efficiency. The FAG Top-Laser TRUMMY2 comprises a cableless measurement probe for direct connection, a measurement probe with cable for difficult to access locations and a manual control device that displays the relevant measurables for belt tension as a frequency in Hz or force in N. FAG Belt Tension Measuring Device, For Use With: V-Belts, 80 mm W x37 mm D x 126 mm H Dimensions