Nikon Digital Theodolite NE-103 ::
TELESCOPE
Effective diameter of objective: 1.77 in (45 mm)
Magnification: 30x
Image: erect
Field of view: 1°20' (2.3ft @ 100 ft / 2.3m @ 100 m)
Minimum focusing distance: 2.3 ft (0.7 m)
Stadia multiplier constant: 100
Stadia additive constant: 0
Reticle illuminator: provided

ANGLE MEASUREMENT
Reading system: photoelectric incremental encoder
Circle diameter: 3.1 in (79 mm)
Unit of reading: degree / gon / mil
Minimum digital reading¹: 5/10", 1/2 mgon, 0.02/0.05 mil
Accuracy (DIN 18723) 5" / 1 mgon

AUTOMATIC VERTICAL COMPENSATOR
Type: liquid-electric detection
Working range: ±3' (out-of-range warning provided)

DISPLAY/KEYPAD

Front
Type: dot-matrix LCD (20 characters x 2 lines)
Backlight: 1-level illumination
Keypad: 5 buttons

Rear
Type: dot-matrix LCD (20 characters x 2 lines)
Backlight: 1-level illumination
Keypad: 5 buttons

OPTICAL PLUMMET
Magnification: 3x
Field of view: 5°
Focus range: 1.6 ft (0.5 m) to infinity
LEVEL SENSITIVITY
Plate level: 30" / 2 mm
Circular level: 10' / 2 mm

LEVELING BASE
Type: detachable
AMBIENT TEMPERATURE RANGE -4 TO 122 °F (-20 to 50 C)
ENVIRONMENTAL RATING IP56

DIMENSIONS
Instrument: 6.0 x 6.8 x 13.1 in (153.5 x 172 x 334 mm)

WEIGHT
Instrument: 10.1 lbs (4.6 kg)
Carrying case: 8.6 lbs (3.9 kg)
POWER SUPPLY
Battery type: 1.5V AA Alkaline x 6
Continuous operating time (at 68 °F / 20C) 48 hrs..