Model: X6 Model Version Basic version Rechargeable version X6 Measuring accuracy ±2mm Measuring units m/in/ft /ft+in Laser class Class 2 Laser type 630-670nm,<1mW Area, Volume Measurement Yes Pythagorean Yes Secondary Pythagorean Yes Automatic level Yes Automatic vertical Yes Angle sensor Yes Rechargeable No Yes Angle measurement accuracy ±（0.3°+0.1°+0.01*D） Measurement benchmark Before/after benchmark Addition and subtraction Yes Continuous measurement Yes Single distance measurement Yes Beeper Yes Historical memory 20 groups Battery AAA 1.5v battery（Battery Not Included) rechargeable battery（in Included)

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