How to use smartbook tablet?

SmartTools includes length, angle and distance measurement, metal detector, intelligent compass and sound and vibration measurement. Click the menu button to bring up the setting menu, set up the software and convert the unit (meters to feet). In the ruler measuring tool, you can click on the screen to mark it, which is convenient for measuring data such as coins, diameters or areas. The first function is mainly to measure the length and angle, and the sixth function is the second ranging function in the main menu. Among them, the more professional ranging function, the software gives a detailed description and usage, just click the menu button, set the reference value, and measure according to the measurement method in the description. In the horizontal state, the electronic compass will display the compass shape on the left, and in the flying horizontal state, the compass will display the shape on the right. On the far right side of the interface, if the back of the phone is close to metal, the indicator light will rise, which can be used as a suggested metal detector. The fourth function of the software is the sound and vibration detector, which can switch or set related instruments by clicking the menu key. The instrument on the left is a sound decibel indicator, and the instrument on the right is a vibration level indicator. Below the table are the concrete manifestations of different decibels of sound or vibration.