Telescope Range Finder 6X Magnification LCD Touch Screen Laser Distance Meter with Battery 1500m / 1640.4yd SW 1500B Item Type: Telescope Range Finder Speed Measurement Function: 0-300km/h (vertical longitudinal measurement error is 5km/h in general) Indication Error: ±(1.0m+Dx0.2%) (high reflection surface) Protection Grade: IP54 Height Measurement Function: Yes Scanning and Ranging Function: Yes Flagpole Locking: Yes Automatic Storage Function: 30 groups Angle Measuring Range: ±90° Angle Tolerance: ±1° Telescope Magnification: (6.0 ± 5%)X Telescope Objective Hole Diameter: Approx. 23.7mm / 0.93in Telescope Eyepiece Hole Diameter: Approx. 15.0mm / 0.59in Exit Pupil Diameter: Approx. 3.7mm / 0.15in Field of View: 6.0°±10% Visual Adjustment Range: ±6 Diopter Measurement Unit: M(meter), Y(yd) Battery: 1 x 18650 750mAh lithium ion battery (built in battery) Charging Interface: Micro USB charging interface (equipped with charging cable) Overall Power Consumption: 1.2W LCD: Through Type LCD