Set of MLS-444GP main unit + receiver MK-404G + tripod MEL-175 Accuracy: ±1.0/10m Automatic correction range: ±3.0° Power supply: Lithium battery/AA battery/AC100V Protection grade: Class 2M Irradiation line: Full line Light source: Green semiconductor laser 光输出(MW):2.5MW或更少 波长(NM):505nm