LDT-402 Series Theodolite

The LDT-402 Series represents a significant advancement in precision angle measurement, combining robust construction with intelligent digital features. This Smart Electronic Theodolite is engineered for surveyors and construction professionals who require reliable, accurate, and efficient data collection in the field. This Smart Electronic Theodolite features a built-in data collector, eliminating the need for external recording devices and streamlining your workflow. The LDT-402A Electronic Theodolite includes the following four types: LDT-402AOL Electronic Theodolite Theodolite, Bottom: Optical, Top: Laser (Red Beam), Grey Shell Color LDT-402ALO Electronic Theodolite Theodolite, Bottom: Laser (Red Beam), Top: Optical, Grey Shell Color LDT-402ALL Electronic Theodolite Theodolite, Bottom: Laser (Red Beam), Top: Laser (Red Beam), Grey Shell Color LDT-402AOO Electronic Theodolite Theodolite, Bottom: Optical, Top: Optical, Grey Shell Color The LDT-402E Electronic Theodolite includes the following four types: LDT-402EOL Electronic Theodolite Theodolite, Bottom: Optical, Top: Laser (Red Beam), Green Shell Color LDT-402ELO Electronic Theodolite Theodolite, Bottom: Laser (Red Beam), Top: Optical, Green Shell Color LDT-402ELL Electronic Theodolite Theodolite, Bottom: Laser (Red Beam), Top: Laser (Red Beam), Green Shell Color LDT-402EOO Electronic Theodolite Theodolite, Bottom: Optical, Top: Optical, Green Shell Color LDT-402 Series Theodolite Specifications Model No. LDT-402E/402A LDT-402EL/402AL Tribrach Model Detachable Detachable Telescope Imaging Erect Erect Magnification 30X 30X Objective Aperture 45mm 45mm Resolution 3″ 3″ FOV 1°30′ 1°30′ Minimum Focus 1.3m 1.5m Multiplication/Additive Constant 100/ 0 100/ 0 Length 156mm 156mm Angle Measurement Measuring Mode Absolute Encoder Absolute Encoder Minimum Reading 1″/ 5″ 1″/ 5″ Reading Accuracy 2″ 2″ Circle Diameter 71mm 71mm Angle Units 360°/ 400gon/ 6400mil 360°/ 400gon/ 6400mil Compensator Tilt Sensor Yes Yes Range ±3′ ±3′ Laser Plummet Wave Length 635nm Red Beam 635nm Red Beam Power 1mw 1mw Accuracy (1.5m) ±1mm ±1mm Laser Grade ClassⅡ ClassⅡ Optical Plummet(Optional) Magnification 3x 3x Field of View 5° 5° Focus Range 0.5m—∞ 0.5m—∞ Laser Pointer Wave Length / 635nm Red Power / 1mW Laser range (Day Time) / 200m Laser Coaxial Accuracy / ≤5″ Laser Spot Diameter / ≤2mm/100m Vial Plate Vial 30″/ 2mm 30″/ 2mm Circular Vial 8’/ 2mm 8’/ 2mm Display Dual Face LED Backlight LED Backlight Power Power Resource Ni-MH Battery 4.8V 1500 mAh Ni-MH Battery 4.8V 1500 mAh Working Temperature -20℃～ 50℃ -20℃～ 50℃ Output Data output / RS232C Memory(points) / 1000