기술 Handy Ruler

Use your smartphone screen as a ruler, and measure the length/size of small objects. You always have this smart tool with you when you carry your smartphone. You easily measure the length or size of the object by placing it at the screen and adjusting the measuring area tightly. The phone is calibrated already at the factory, but you can also do a calibration yourself by using another ruler, or a suitable object of known size. This app does not show ads.
Key features:
✓ Handy ruler
✓ Measures in cm, or inches (decimal or fraction)
✓ Just measure anything that fits into the screen
✓ Measures just length, or length and width at the same time.
✓ Has a high precision caliper mode for accurate adjustment of the measuring area.
✓ The measurements can be stored in a list. A listed measurement can be retrieved back to the screen.
✓ Calibrated already at the factory. If that is not good enough it is possibe to calibrate by using another ruler or a suitable object of known size such as a credit card.
✓ Easy to use
✓ NO ADS !!!
Disclaimer:
Be careful to not scratching your screen when putting objects at it.
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