A Handy tool for accurate measurements.
Very useful when you need to check single axis alignment of an object (e.g. a painting or a shelf).
Use your device's vertical or horizontal edge to check if the object is leveled correctly.

Features:
- HOLD button
You can press this button to save the results of your measurements and deactivate a tool. Press it again to release the hold.

- CALIBRATE button
Place your device on a level surface and press this button to calibrate a tool for the best accuracy.
If you are not sure if a surface is perfectly level you can place a small sphere on it (e.g. a marble).
If it stays still and doesn't roll in any direction, the surface should be level.

- RESET button
Reset a tool and its calibration to the "factory" settings.

- SOUND ON/OFF switch
You can turn the sound on to help you level difficult to access objects. The higher the frequency and pitch of the sound the more level is the measured area.

- LOG button
Press it to access the Log journal. You can log any measurement by double tapping with your finger anywhere on a tool's screen.