LED Stroboscope, 1 Each

The LED Stroboscope by United Scientific is a handheld stroboscope with a 30 W super-LED that flashes at adjustable rates from 1 Hz to 250 Hz (1 to 15,000 RPM) with 0.1 Hz resolution. Frequency doubling, halving, and fine step controls help find the true motion rate, and magnetic pads let it mount on steel surfaces. Physics teachers use it to freeze vibrating, rotating, and oscillating motion for measurement.