A rotatable adjustable stop for fast measuring of open and closed spring pressures 2.0" diameter plates will handle almost any spring on the market 3 mounting locations on the handle allow you to adjust the length for increased torque Easy to use travel stop with adjustable set screws let you set an exact position, allowing repeated testing at a specific height 2 set screws on travel stop allow you to adjust for installed spring height and wide open lift (near coil bind) Large, easy-to-read numbers on the backlit screen Easy to access controls on the front of the tester 1500 pound loadcell in 1 pound increments Unit is switchable from pounds to kilograms Digital travel readout at .001" 5" travel capacity Operates on one 9-V battery (included) BIllet 6061 T-6 aluminum construction