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Digital End Pulley for use with the air table is a large, endstop-mounted, ball-bearing pulley, that sends glider motion to a computer for recording and data processing. The spokes on the pulley are viewed by a reflection photogate.

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A large, endstop-mounted, ball-bearing pulley that sends glider motion to a computer for recording and data processing. The spokes on the pulley are viewed by a reflection photogate whose output can be recorded by popular computer input modules. For Air Track AP5615.