Air Track Smart Timer with 2 Photogates, Extra Large Display

The purpose of this device is to allow precise timing of physics motion experiments with Air Tracks. The 611-0104 Smart Timer has seven separate functions and may be used to count time, measure acceleration when used with air track and collision devices.  The 611-0104 uses a six digit LCD and has a timer range up to 1000 seconds, with an accuracy of .0001 seconds.  The timer conveniently displays its functions with a large graphical user interface.