Optical theodolite LDT series

digitallaser

Model - LDT 202B - LDT202BL Telescope - Length of Telescope - 156mm Image - Erect Objective Lens Aperture - 45mm Magnification - 30X Field of View - 1°30″ Resolving Power - 3.5″ Shortest Sighting Distance - 1.3m - 1.5m Stadia Ratio - 100 Stadia Constant - 0 Angle Measurement - Method - Absolute type encoder Detecting - Horizontal:Double - Vertical:Single MinimumReading - 1"/5"　Optional Accuracy - 2″ Display Panel - Double Face Compenstor - Tilt Sensor - Yes Range - +/-3′ Output Interface - Communication Standard - RS232C Date Output Interface - Yes Memory - 1000 Laser Plummet - Laser power - 1mW Dot Diameter - ＜＝2mm Accuracy - 1.0mm Base - Base Model - Separated Power - Battery - Chargeable battery or 4*AA alkaline Working Time - About 45 Hours Bubble - Sensitivity of Long Vial - 30″/2mm Sensitivity of Bubble - 8′/2mm Other - Size - 160x175x340mm Temperature - -20℃~+50℃ Net Weight - 4.8kgs Collimation laser - Wave length - No - 635nm Max working distance - No - 200m(cover the sunsight) Coaxial error of Laser Axis and Visual of the collimation axis - No - ＜＝10″