Operates at a frequency of 50 to 60Hz, equivalent to that of the mains power supply, and is supplied with one roll of ticker tape and  Carbon Discs. It will give good results if operated from a 6-12V AC power supply. Higher voltage causes the tape to be subject to a greater drag. 

This device uses an electromagnet which activates a striker, producing dots via a carbon disk on the ticker tape. With 4mm terminal sockets. The Ticker Tape Timer is used in the measurement of velocity, acceleration and general timing.