LDT-402E Electronic Theodolite Description:

The LDT-402E Electronic Theodolite features an absolute coding angle measuring system that delivers 1"/5" minimum reading with 2" accuracy, ensuring precise and reliable angle measurement for all your surveying projects.

Featuring a dual-sided LCD panel with LED backlight, the LDT-402E Electronic Theodolite provides clear reading from any angle, making it ideal for both day and night operation in various working conditions.

Built with a steel shaft system and metal casing, the LDT-402E Electronic Theodolite offers exceptional durability and long service life, capable of withstanding harsh job site environments from -20℃ to +50℃.

Equipped with an independent tilt sensor, the LDT-402E Electronic Theodolite automatically corrects tilt errors within ±3' range, ensuring measurement accuracy even on uneven terrain.

The LDT-402E Electronic Theodolite comes with a built-in laser plummet (1mm accuracy at 1.5m) and sealed waterproof telescope, providing reliable performance in various weather conditions and challenging environments.

With RS232C data output and 1000-point memory capacity, the LDT-402E Electronic Theodolite enables seamless data transfer and efficient project management for modern surveying workflows.

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-402E Electronic Theodolite Specifications

Model No.		LDT-402E
Tribrach	Model	Detachable
Telescope	Imaging	Erect
	Magnification	30X
	Objective Aperture	45mm
	Resolution	3"
	FOV	1°30'
	Minimum Focus	1.3m
	Multiplication/Additive Constant	100/ 0
	Length	156mm
Angle Measurement	Measuring Mode	Absolute Encoder
	Minimum Reading	1"/ 5"
	Reading Accuracy	2"
	Circle Diameter	71mm
	Angle Units	360°/ 400gon/ 6400mil
Compensator	Tilt Sensor	Yes
Compensator	Range	±3'
Laser Plummet	Wave Length	635nm Red Beam
	Power	1mw
	Accuracy (1.5m)	1mm
	Laser Grade	ClassⅡ
Optical Plummet (Optional)	Magnification	3x
	Field of View	5°
	Focus Range	0.5m—∞
Vial	Plate Vial	30"/ 2mm
Vial	Circular Vial	8'/ 2mm
Display	Dual Face	LED Backlight
Power	Power Resource	NiMH Battery 4.8V 1500 mAh
Power	Working Temperature	-20℃～+50℃
Output	Data output	RS232C
Output	Memory(points)	1000