famous brand high quality resonable price APRESYS PRO20000 laser rangefinder with the role of distance, small size, light weight, high ... consumption, easy to carry and so on.1,Wavelength:1064nm;2,Minimum range:50M;3,Maximum range:20000m4,Ranging Accuracy:±3m ... lithium polymer battery;14,Weight:2KG (without batteries); Apresys Pro20000 Laser rangefinder