Feature:1. This digital protractor can measure the singleaxis tilt angle, and the largescreen LCD clearly displays the angle.2. M4 screws can be installed on the back for easy instrument fixation, installation and measurement.3. Widely used in machinery manufacturing, automobile maintenance, healthcare industry, wood processing, instrument testing, home decoration, etc.4. This high accurate digital protractor gauge is small, easy to carry and convenient to operate.5. This digital display level protractor can set a buzzer alarm at a specified angle.Specification:Item Type: Digital ProtractorMaterial: PlasticModel: XDL360S MagneticHow to Use:.1.POWER (in normal operation, this button is mainly used to switch the angle ruler)2. ZERO (press the button, the current angle will be set to zero)3. HOLD (after pressing this button, the LCD will lock the display of the angle when pressed; the [O] on the screen will flash, indicating that the current angle reading is locked)4.ANGLE (Any object angle measurement button, press and hold for 3 seconds to enter the menu mode, set various parameters)Built-in Battery: Rechargeable lithium ion battery 3.7VUser Interface: Backlit mono-color LCDCharger Interface: 5V 500mA Mini B type USB interfaceResolution: 0.01Accuracy: 0.05Measuring Range: Single axis 360Size: Approx. 70mm / 2.8inPackage List:1 x Digital Protractor1 x Data Line1 x Plug1 x User Manual