CHANEY ELECTRONICS C4516 Time Reaction Tester (soldering kit)

If you ever thought that your sense of timing was good here's an electronic kit to prove it! If your timing is good the LED will stay on, if not the LED continues to flash. Operates from one 9V battery (not included). Size of board: 1" x 2". Complete with all parts, PC board and instructions. Skill Level 1.