Jump height measurement

A device that measures a player's vertical jump. Easy conversion of blades by using bottom control with two bearings. Used pressure spring keeps the blades in a slight resistance. The height of the leaves can be adjusted with a screw. Measurement in the range (170 cm) 210 cm - 370 cm. Two options: with or without base. The base consists of a leg with load and a guide arm, the load is 15 kg. 

 This vertical jump tester has a telescopic design and offers a measuring range of 130-380 cm with an accuracy of up to 1 cm.