1. telescope: Length: 154mm Objective aperture: 45mm EDM: 50mm Magnification: 30X Image: erect Resolving power: 3? Field of view: 1 30 Minimum focus: 1m 2. angle measurement: Display resolutions: 1?5? 0.0003G/0.001G, 0.001M/0.01M Accuracy: 2?for KTS-552 & 5?for KTS-553/555 Measuring mode: H/V (absolute encoding) 2. distance measurement: measuring range: 1P: 2.0km for KTS-552 / 1.8km for KTS-553 / 1.6km for KTS-555 3P: 2.6km for KTS-552 / 2.3km for KTS-553 / 2.0km for KTS-555 Accuracy: ±(2+2ppm x D)mm Display resolution: fine measurement: 0.001m/0.004ft / tracking measurement: 0.01m/0.01ft Atmospheric correction: input the parameter adjusted automatically 3. general measurement: data storage: 100,000points approx. interface: RS-232C compatible, baud rate: 1200 to 1152bps keyboard (dual face): face1/ face2: alphanumeric, 28keys