GSC International TKTMR Spark Timer - Speed Ticker Tape Timer & Physics Timing Device for Measuring Motion & Acceleration, Visualizes Linear Speed Changes in Labs & Classrooms, 12V Power Supply Purpose & Application: Designed for use in physics labs and classrooms; allows students to visualize linear motion and study changes in velocity and acceleration using spark-generated timing marks Included Components: Comes complete with spark timer unit and 12V power supply, clamp, tape and carbon discs; provides a consistent spark interval for accurate measurement of time and displacement in motion experiments Educational Value: Supports hands-on learning in STEM subjects; ideal for experiments involving acceleration, deceleration, and constant velocity across a measured path using ticker tape Product Dimensions: Measures 11 x 6.5 x 3 inches; compact footprint fits easily into standard lab storage; lightweight design enhances portability and ease of classroom use Weight & Build: Weighs 1.5 pounds; constructed with a sturdy exterior suitable for repeated lab use; clearly labeled inputs and outputs support intuitive setup and reliable operation PRODUCT WARNINGS This product is NOT A TOY. It is designed for educational, scientific, or professional use only. Adult supervision is required at all times. Improper use may cause injury or damage. Always follow safety guidelines and wear appropriate protective equipment. Not suitable for children 15 and under.