Specifications: North-finding error: North-finding time: ¨¹12 min Control units: -40~ +50æ Operating latitude: -65~ +65ã Dimension of itself: 360mm*230mm*230mm, Weight: 16Kg Dimension of the control units: 330mm*340mm*200mm, Weight: 15Kg Dimension of the Theodolite: 160mm*193mm*280mm, Weight: 5Kg Power supply: 27¨¤3V, Power: 150W. Advantages: Instrument constant with high stability, after 6 months, the instrument constant variation ÂC = 20'' The instrument with high automatio degree, Only need artificial leveling, and enter the latitude value. Can be used on vehicle directly or be used with a tripod. Using the CCD to measure misalignment angle HHHHHHHHHHHHHHaccuratelyHHHHHHHHHHHHHH, reduce human error.