Photogate Timer with 5 Timing Modes, Pair of Photogates and Mounting Rods

This Photogate Timer features five timing modes: Interval, Frequency, Period, Count, and Stopwatch. Each mode supports different types of physics measurements including pendulum swings, freefall acceleration, rolling object speed, and rotating systems. The kit includes a pair of photogates, mounting bolts and rods, connecting leads, a 9V adapter, and an instruction manual. Battery operated for portable use or powered by the included 9V adapter. The timer control box measures 6.5 x 3.75 x 1.5 inches, and each photogate measures 5 x 4.25 x 1 inches. Suitable for physics classroom experiments studying speed, velocity, and acceleration.