TRACE / Electrical measurer

The distance measuring act often occurring in usual life accompanies with a troublesome and inconvenient process that we should use both hands. Also, the situation that should measure the length of a curve takes place, but it is very difficult to accurately measure this. The ‘Trace’ easily and conveniently measures the distance by utilizing a photo sensor. We can measure the distance of a straight line or a curve anytime through a simple dragging act.