Children or parents can measure their own height.
1. One hand pick up the measuring instrument to the bottom of the wall;
2. Children close to the wall stand straight, adjust the height of the measuring instrument, so that the measuring instrument flat head;
3. The measuring instrument does not move, the child slightly back, press the button to hear the buzzer beep, you can move the measuring instrument to observe the data, select the diameter of 80cm within the barrier or no foot line wall:
Parents guide children to measure
1. Keep the back of the child against the wall and stand straight, keep the measuring instrument flat and close the child’s head to keep it fixed;
2. Let the child go away, press the button to hear the buzzer beep after you can move the meter to observe the data.