Two-Speed Ticker Tape Timer Lab Kit

This two-speed ticker tape timer kit is designed for measuring velocity and acceleration in physics experiments. A vibrating striker prints dots on the included tape using carbon discs at selectable rates of 25 or 45 dots per second. The unit is housed in a durable, scratch-proof, shock-absorbing plastic case with a single aluminum clamping plate for securing to a bench or dynamics track. Timer tape and carbon discs are included. A 12V DC power supply is required but not included with this kit.