measure and save the speed of cars, trucks, bikes, planes...
works like a velocity measuring photoelectric sensor.
works from nearly any direction (best from the side).
can measure m/s,km/h or mph.
takes photos with speed information for viewing later.
has voice output.
1. Mount or fix your device (for e.g. lean against window or tape it somewhere)
2. Move the 2 circles with your fingers to 2 points you can guess the distance of one to another (for e.g. length of cars/stripes) and which are both passed by the objects you want to measure
3. Enter the distance into the blue textbox (the blue line in the image represents your distance)
4. Press Start