每公里往返测量标准偏差 ：                   2mm（NAL10 ）/ 1mm(NAL20）    
 
                       放大倍率：                      24×（NAL10）  /      32×（NAL20）
                       有效孔径：                   36mm （NAL10）/   40mm（NAL20)
)望远镜            最短视距：                   0.6mm（NAL10）/   0.8mm (NAL20)
                       物镜成像：                                           正像
                       乘常数：                                              100
                       加常数：                                                0

补偿器             补偿范围：                                          ≥±15'  
                       安平误差：                                         ≤ 0.3＂
                         
水准器             圆水准器：                                        8'/2mm

                      度盘直径：                                         109mm
度  盘              度盘刻划：                                          360°
                      分度间隔：                                            1°

其  他             仪器重量：                                          2.0kg
                     工作温度：                                    -20 0C～+50 0C