Feature:1. With 0.02° high accuracy, the digital protractor is designed for measure the tilt angle quickly and accurately.2. 2.4-inch digital color screen and 4 LED lights of the 4 corners for easy reading and use, clear and intuitive.3. Multiple-interface display: measurement, system config, angle control, free fall detection, shake detection, wave curve.4. Output control interfaces on both sides facilitate subsequent installation if necessary.5. 1200mAh rechargeable li-ion battery ensures strong endurance; quickly recharge it via the USB charging port.6. Built-in magnets ensure the digital protractor and measured object are close fitting. Mini size, lightweight and portable.7. Widely used in measurement, data collection and installation of mold development, sheet metal bending, machine tool, steel structure, scaffold, door and window, etc.Specification:Electrical levelling instrument is a portable tool which can measure the tilt angle quickly and accurately.Features:With 0.02° high accuracy, the digital protractor is designed for measure the tilt angle quickly and accurately.2.4-inch digital color screen and 4 LED lights of the 4 corners for easy reading and use, clear and intuitive.Multiple-interface display: measurement, system config, angle control, free fall detection, shake detection, wave curve.Output control interfaces on both sides facilitate subsequent installation if necessary.1200mAh rechargeable li-ion battery ensures strong endurance; quickly recharge it via the USB charging port.Built-in magnets ensure the digital protractor and measured object are close fitting. Mini size, lightweight and portable.Widely used in measurement, data collection and installation of mold development, sheet metal bending, machine tool, steel structure, scaffold, door and window, etc.Note: Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding.Specifications:Color: YellowMaterial: Plastic + Electronic Components + MagnetDisplay: 2.4" Color ScreenAccuracy: 0.02°Measure Range: Single Axis 360°, Dual Axis ±60°Buzzer: YesLED Indicator: BluePower Consumption: 0.2WBuilt-in Battery: 3.7V 1200mAh Li-ion BatteryWork Temperature: -10℃~40℃Item Size: 83 * 83 * 30mm / 3.27 * 3.27 * 1.18inItem Weight: 155g / 5.44ozPackage Size: 17 * 10 * 3.8cm / 6.69 * 3.94 * 1.50inPackage Weight: 216g / 7.62ozPackage List:1 * Digital Protractor1 * USB Cable1 * User Manual (English)Package List:1 * Digital Protractor1 * USB Cable1 * User Manual (English)