... 3 ~ 1,000m Single AP prism 1.3 ~ 5,000m , Good weather conditions : 1.3 ~ 6,000m 3 AP ... prisms to 8000m Good weather conditions:up to 10000mNo collaboration goal accuracy (precise measurement) ... compass.Close-range mode 2 ~ 100m * 7, good weather more than 3: 2 to 150m(SRX and RC-PR3 ... slant range) distance mode 2 ~ 250m * 8, good weather more than 3: 2 to 300m * 2 Sokkia Automatic ...