2 Speed Ticker Timer, requires a DC power supply, Each

Details

This 2 speed ticker timer is a modern version of the tried and tested method of measuring velocity and acceleration. A vibrating striker prints dots on the tape using carbon discs. The rate can be adjusted to 25 or 40 dots per second. The unit is housed in a durable, scratch proof, shock absorbing plastic case which has a single plastic plate for clamping to a bench or fixing to a dynamics track. It has a unique method of adjusting the position of the carbon disc.Includes 100 Carbon Discs and one 50m roll of tape.Operates on 12 volts DC supply (not included). See PH0353B for additional paper tape rolls.