Ruler-Range finder

The ruler measuring tool is a collection of many small tools. It includes rulers, noise meters, protractors, distance measuring functions. It also supports levelers, flashlights, hanging calibration tools,etc

Characteristics include:
* Single-segment and multi-segment measurement of length and distance
* Flexible switching of different measurement modes
* Multiple measurements to support simultaneous measurements of length, circumference, height, etc.
* One-button screenshot saves measurement results
* Clear measurement lines and text
* simulation ruler
* auxiliary plane coordinate system


Introduction to Application Tools
1.） Ruler: A small tool for measuring length, supporting metric and British systems.
2.） Noise meter: Detect surrounding sound decibels by mobile phone
3. ）Protractor: A small tool for obtaining the angle of an object and taking measurements with a camera.
4.） Calibration of hanging pictures: a small tool for quickly checking the neatness of household hangings.
5.） Measuring distance: Input the height of the object, calculate the horizontal distance accurately.
6. ）Leveling instrument: A small tool to determine the level of a mobile phone by placing it on a test object.
7. ）Compass: Quick and accurate positioning tool, no longer lost.
8.） Flashlight: Turn on the phone light with one button.