Two-way laser ranging can be measured horizontally and vertically at the same time to meet different measurement needs and make the measurement smoother. Bidirectional core optics, bidirectional optics, with a powerful laser and anti-jamming lens, so that the signal transmission and reception capabilities are both enhanced. High frequency green light large optical light signal high energy output more clear: 2mm distance measurement accuracy; Low distortion optical lens greatly reduces ambient light interference with 99.9% repeated measurement stability. No need to bend over the measurement, two-way laser unique two-way reference, so that no need to bend over the measurement of horizontal or vertical measurement. Center point positioning, during the measurement process, open the bidirectional reference, can locate the measurement object center point position. Electronic Angle sensor: Angle data is displayed in real time, and the Angle of both sides of the bottom and side can be measured in real time. Electronic horizontal bubble, with electronic horizontal bubble, can measure the levelness of the plane, more accurate and efficient. Type-c lithium flash charge fast charging, 850mAh large capacity lithium battery, . Automatic screen rotation and locking; During the measurement process, the screen rotation and lock screen can be freely adjusted according to the measurement Angle. size: 115 x 50 x 24.5mm Material: ABS colour: Black Package Contents: 1 x laser rangefinder 1 x charging cable 1 x English instructions 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.