Digital Timer with Photogates, Microprocessor-controlled four-digit timer, Each

Details

This convenient free-fall apparatus for measuring the acceleration of gravity features a 150cm fall length and includes an electromagnetic ball release, a pair of photogates on a long cable harness, two steel balls, a plumb line, and a catcher. It requires the digital timer DTPHG1 (not included). A more detailed description is available upon request. An activity guide is also included.