Description Description: Simple Operation: The panel is mainly composed of digital display tube, functionkey and LED indicator. The functionkey is the micro touching button. Test the initial speed can be tested without any settings and adjustments High Accuracy Measurement: As the device with high accuracy and clamp rail, and fixed equipment after the paths every times are the same, and with the guide rail can be made with the mining model in parallel, so the measurement result error is small, small fluctuation dynamic error. Test error less than or equal to 0.5%.High Stability: Precision velocity meter with four sides of the air design, to effectively ease the impact of testing times. Improved stability and accuracy. Function is more abundant. Not only can measure the speed, but also can measure the kineticenergy, at the same times can record up to 40 groups of speed and the 40 group of the kineticenergy value.Compact Size and Light Weight: Our speed tester with mini size is very easy