This brand has two logos – ATuMan / DUKA
ATuMan is the global version(EN operation interface & EN manual), and DUKA is Chinese version.
ATuMan AR-1 Multifunctional Ruler Digital Display Angle Ruler LCD Display 360 Degree Measurement 304 Stainless Steel Laser Calibration Digital Protractor Ruler
– The scale of steel ruler is carved by laser, not easy to fade, wear and rust.
– Multi purpose tools. Can be used for painting, work, measurement, learning, decoration.
– Made of 304 high quality stainless steel, even in the case of long-term use, it is not easy to deform and rust.
– 360 degree internal and external angle measurement, 40 cm ruler measurement and line drawing.
– The accuracy is ±0.2 °and the measurement is more accurate.
– Reset button "zero", a press will automatically reset data.
Item name: ATuMan AR-1 Multifunctional Ruler
Measuring range: 0-360°, 0-200mm
Display accuracy: 0.1°
Battery: 3V CR2030 button battery
Material: 304 Stainless steel
Working temperature: 0-50℃/32-122℉
Working humidity: ≤ 85%
Product size: 200*35 mm
Product weight: 165 g
There is a little of difference according to manual measurement.
Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.
1 * ATuMan AR-1 Multifunctional Ruler
1 * User Manual