It is necessary to calibrate once in the normal mode and in the ZOOM mode.
After calibration, it measures a sufficiently accurate distance to the object, if the height or width of the object is known, within the limits of the camera's view of your device.
- simple interface;
- there is a ZOOM mode;
- the object can be placed in any part of the screen, not necessarily in the center;
- Ability to calibrate for any smartphone or tablet;
It is recommended that you read the instructions before use (in the menu)