Electronic Dotting Timer

Operating on 220V AC, 50Hz. Typing cycle is 20ms, now it commonly takes the place of electromagnetic dotting timer in physical experiments. The timer is used for recording the body movement in a special paper.

Description

Operating on 220V AC, 50Hz. Typing cycle is 20ms, now it commonly takes the place of electromagnetic dotting timer in physical experiments. The timer is used for recording the body movement in a special paper.

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