Description: High accuracy +/-(0.15 Degree + 1%) , high resolution 0.02Degree Dual and Single axis with user friendly LCD display angle Rechargeable V Shape metal case for easy to fit at the corner or pipe 5 side Magnetic base Audible alarming at settable angle range Application:Interior decoration, Construction area, Plumbing, Floors & Stairs, Woodwork Product size: Approx.70x23x70mm/ 2.76x0.90x2.76inch Specification: Accuracy: +/-(0.15Degree + 1%) Measuring range: Single axis:360 degree Dual axis:40 degree Resolution: 0.02Degree Response time:<0.4 second Audio sound: 60dB @ 30cm Operating temperature: 0 to 50 Deg C Storage temperature: -10 to 60Deg C User Interface: Mono-color LCD with backlight Supply Power: Rechargeable Li-Ion Battery, 3.7Volt. Charger port: 5V 500mA Mini type-B USB port Power Consumption: Standby: 200uA, Operation: 20mA. Standby Battery Life: 2000 hours Operating Battery Life: 40 hours Package Includes: 1 Piece Dual Axis Digital Protractor 1 Piece User Manual