DT-22
Telescope
Image: Erect
Magnification: 30X
Objective aperture: 45mm
Field of view: 1°30'
Shortest veiwing distance: 1.4m
Stadia ratio: 100
Resolution: 3?
Angle measurement
Mode: Absolute angle encoder system
Minimum reading: 1?, 5?
Mode of detection: H: double sides
V: double sides
Accuracy: 2? / 5?
Angular unit: DEG/MIL/GON
Display: LCD double sides
Compensation range: ±3'
Down Point type: Down laser plummet
Precision of plate vial: 30?/2mm
Precision of circular vial: 8'/2mm
Working temperature: –25?~+50?
Power supply: Lithium battery 3.7V
Weight: 4.6kg
Volume: 200×160×345mm
Theodolite