It combines the functions of a digital level, angle meter, and laser line thrower into one compact device. As a laser level with 2-beam, this angle gauge can emit horizontal and vertical laser line, help clearly mark, Class 2 (IEC/EN60825-1/2014), output power <1mW. 360°/4x90° measure angle, the measured value on the display is automatically adjusted, buzzer will alert when it's within ± 1° to the horizontal or vertical position. Angle gauge has higher resolution of 0.05°and higher accuracy of ±0.1°at 0° and 90 °, and ±0.2°at other angles, ensuring precise measurements every time. There are 2 measuring modes to meet different measurement needs: Absolute Measurement (ABS) and Relative Measurement (REF). Just one short press, you can check the true or relative angle conveniently. Besides, featured Data Hold, Unit Conversion, Calibration functions. Digital level boasts a powerful 650mAh lithium battery. It charges rapidly via Type-C port, can enjoy up to 20 hours of usage on a single charge. Feature: Measuring RangeSingle axis: 4*0° ~ 90° and 2*0° ~ 180° Resolution :0.05° AccuracySingle axis: ±0.1° at 0° /90°/180°; ±0.2° at other angles Battery: 650 mAh lithium battery Working Temperature: 0℃ ~ 40℃ Storage Temperature: -10℃ ~ 50℃ Color: As Shown Material: plastic Package Contents: 1*Digital Laser Angle Gauge Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.