Digital Bevel Box / Digital Protractor / Inclinometer 360 degree with Magnet

Applications - Fitting roof beams at the desired angle - Measuring or setting the pitch of drainage pipes - Setting or checking the angle of disabled access ramps - Setting or checking the grading of ground or roads for drainage Technical Parameter: Battery: 9V PP3 alkaline battery Weight: around 100 g (exclude battery) Automatic Power-off Function: When the instrument is on, it will automatically power off after the period of 120 seconds during which no button is pressed or the change of angle is kept to be equal to or less than 0.1degree Stand-by Time: Around 700 days. (The battery shall be taken out for storage if the instrument will be kept idle for a long time period) Operating temperature range: -10C--+60C Storage temperature range: -20C--+80C Operating humidity range : < 90%RH Measurement range: 0~90 degrees/ quadrant x 4 quadrants, that is, 360 degrees. Display resolution: 0.10degree Precision: The precision of measurement is lessthan 0.1 degree. Under the condition that the temperature error band within the operating temperature range (that is,the temperature drift) is less than 0.05 degree, the long term temperature drift is kept below 0.1 degree and the repetitive error below 0.07degree. Automated Voice Implication: 0-degree, 90-degree and 180-degree. Outside dimension (MM): 160x52.5x21.5 (length X width X thickness) Dimension of the display: 71.5x23.5 (length x width) The 9v battery is not included in this set, thanks for your understanding