技术指标：
望远镜
                    有效孔径                                                                            45mm
                    放大倍率                                                                              30×
                    成像                                                                                      正像
                    视场角                                                                                1°30′
                    最短视距                                                                              1.5m
测距部
                    测程：
                  单棱镜（在良好气象条件下）BTS-802R  ----------3.0km  
                无棱镜（在良好测量条件下）BTS-802R----200m
                    测量精度：      
                                              BTS-802AR  ----±(2mm+2ppm?D)
                                        BTS-802  R------±(3mm+2ppm?D)    
                    最小读数：  
                    精测模式                  1mm
                    跟踪测模式          1mm      
                    测量速度：
                    精测模式                  约1.8秒(首次2.5秒)
                    重复快测模式      约0.9秒(首次2.5秒)
                    跟踪测模式          约0.4秒(首次1.5秒)
                    大气改正范围      -499ppm~+499ppm（步长1ppm）
                    棱镜常数改正范围  -99mm~+99mm  (步长1ppm)
测角部      
                    最小读数                          10秒/5秒/1秒
                    标准偏差：                  
                                                BTS802AR  ------2″
                                          BTS802R---------2″
                                          BTS805R---------5″
                    测量时间                                                          0.1秒
                    倾斜补偿器工作范围                                      ±3′
                    水准器灵敏度：
                    圆水准器                                                          8′/2mm
                    长水准器                                                          30″/2mm
光学对点器
                    放大倍率                                                          3X
                    调焦范围                                                          0.5  ~∞
                    成像                                                                  正像
                    视场角                                                              4°
电池                                                                                
                    电压                                                                  DC  7.2V
                    容量                                                                  2.5AH
                    连续工作时间（20℃）：
                    距离和角度测量                                              4小时
                    仅作角度测量        18  小时
温度范围
                    存储                                                                -40℃～+60℃
                    工作                                                                -20℃～+55℃
仪器外形尺寸                                                                    190X210X350mm
仪器重量                                                                            6kg
性能特点：
1、免棱镜测距200米，交通指示牌500米，单棱镜5公里，满足不同用户的各种专业需求；
2、高密度大屏幕中文显示界面，5行10列，数字、字母、功能键、导航键操作，易学易用；
3、超大容量锂电双电池配置，超长时间待机，彻底解决野外测量的后顾之忧；
4、强大内存管理功能，存贮50000点数据，自动记录角度、距离、坐标、测站等各种数据；
5、超大容量程序存贮空间，预装丰富的测量应用程序，满足不同用户的各种专业需求；
6、开放的数据通讯功能，可直接与计算机进行实时双向数据传输和内存双向数据传输；