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

Details

This two-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, with an adjustable rate of 25 or 40 dots per second. The unit is housed in a durable, scratch-proof, shock-absorbing plastic case that has a single plastic plate for clamping to a bench or fixing to a dynamics track. It features a unique method of adjusting the position of the carbon disc. This product includes 100 carbon discs and one 50m roll of tape. It operates on a 12-volt DC supply (not included). See PH0353B for additional paper tape rolls.