Feature:1. High accuracy 0.1, high resolution 0.02.2. Li-lon battery rechargeable, High quality.3. High resolution, professional measurement.4. Single and dual axis, convenient to measure the angle.5. Dual and single axis with user friendly LCD display angle.6. V shape case for easy to fit at the corner or pipe.7. With 5 Side Magnetic base, audible alarming at settable angle range.8. The unit could be charged by connecting the USB cable to the unit and a computer\u0027s USB port.9. High accuracy 0.1, high resolution 0.02. Li-lon battery rechargeable, High quality.10. High resolution, professional measurement. Single and dual axis, convenient to measure the angle.11. Dual and single axis with user friendly LCD display angle. V shape case for easy to fit at the corner or pipe.12. ACCURATE \u0026 QUICK RESPONSEHigh accuracy 0.1, high resolution 0.02. Response time: \u003c0.4 second.13. RECHARGEABLE Li-lon battery rechargeable, High quality. The unit could be charged by connecting the USB cable to the unit and a computer\u0027s USB port.14. AVAILBLE FOR CORNERV shape case for easy to fit at the corner or pipe.15. MAGNETIC BASE ON 5 SIDESWith 5 Side Magnetic base, audible alarming at settable angle rangeSpecification:Using this axis digital angle protractor, you can measure the angle between two faces, not only in earth gravity direction. Press Angle key at the first face, and then rotate slowly and must keep the rotation axis to another testing face, It will then show the angle once you not move the unit. Features:High accuracy 0.1, high resolution 0.02.Li-lon battery rechargeable, High quality.High resolution, professional measurement.Single and dual axis, convenient to measure the angle.Dual and single axis with user friendly LCD display angle.V shape case for easy to fit at the corner or pipe.With 5 Side Magnetic base, audible alarming at settable angle range.The unit could be charged by connecting the USB cable to the unit and a computer's USB port.Specifications:Color: YellowAccuracy:0 to 20: (0.1) 20 to 70: (0.2) 70 to 90: (0.1) Measuring Range Single Axis: 360 , Dual Axis: 40 Resolution: 0.02 Response time: <0.4 secondZero offset drift angle per C: 0.0058(typical) Operating temperature: 0 to 50C (32 to 122)Storage temperature: -10 to 60C (14 to 140)User Interface: Mono-color LCD with backlight Supply Power: Rechargeable Li-Polymer 3.7V Charger port: 5V 500mA Mini type-B USB port Power Consumption: tandby: 10uA, Operation: 20mA Standby Battery Life: 4000 hours Operating Battery Life: 40 hours Magnetic Base: set on 4 corners Magnetic Force: N48 Item Size: Approx 7 * 7 * 2.8cm / 2.7 * 2.7 * 1.1inItem Weight:Approx 118.3g / 4.2ozPackage Size:Approx 17 * 13 * 4.5cm / 6.7 * 5.1 * 1.8inPackage Weight:Approx 249g / 8.8ozPackage List:1 * Digital Angle Protractor1 * AC Adapter1 * User ManualPackage List:1 * Digital Angle Protractor1 * AC Adapter1 * User Manual