2-Speed Ticker Timer Kit

This two-speed ticker timer prints dots on paper tape at a rate of either 25 or 40 dots per second, providing a time-calibrated record of motion for measuring velocity and acceleration. A vibrating striker marks the tape through carbon discs. The unit is housed in a durable, scratch-proof, shock-absorbing plastic case with a single plate for clamping to a bench or fixing to a dynamics track. A unique mechanism allows easy positioning of the carbon disc. The kit includes 100 carbon discs and one 50-meter roll of tape. Operates on a 12V DC power supply (not included). Additional paper tape rolls available separately (PH0353B).