★ E can be used as a protractor.
★ physical therapists, doctors, etc. who need to measure the angle of the joints can be useful for people.
★ Application for range of motion is measured.
For mobile phones using the sensor to measure because it requires attention. For more information, please see the Help within the application.
★ start button, click, click, and then when the stop button to display the angle.
Note) have a cell phone, a vertical position should not be included in the measurement range.