All new linear strobescope product employing the fast growing digital technology of high brightness LEDs. The DT-329 is ideal for speed measurement, motion and vibration analysis, and visual inspection such as printing devices, converting machines or web presses. Features:High flash rate - 120,000 FPM (2,000 Hz) High brightness - 1,950 lux at 120,000 FPM and 7.87 in (20 cm) Wide flash area - about 23.6 2 in x 15.75 in (600 mm x 400 mm) Silence - there is no noise like the xenon tube Easy setting - the flash rate can be easily changed with the jog dial