Specification :

Model: B40
telescope
Length: 215mm ( 8.46in) .
Magnification: 24X
Aperture Objectives: ( . 1.26in) 32mm
Resolving power: 4 "
field of view
( At 100m / 328ft.) : 1 ° 25 ' ( 2.5m / 8.2ft.)
Minimum focus: 0.2m ( 7.9in.) From the end of the telescope
0, 3 ( 1ft.) From the center of the instrument
image: upright
Reticle Pattern: crosshairs
Stadia Constant: 0
Stadia Ratio: 100
Focus Knob: 1 - Speed
Sighting aid: Gun sight
Lens hood:
Accuracy ( standard deviation for 1km double run leveling)
Without micrometer: 2.0mm ( 0.08in) .
With micrometer: -
compensator
Type: Pendulum compensator with magnetic damping system
Setting accuracy: 0, 5 "
Working range: _+ 15 '
Circular Level
Sensitivity: 10 ' / 2mm
Mirror: mirror plane
horizontal circle
Diameter: 103mm ( 4.1in.)
gradation: 1 * / 1gon
general
Horizontal motion drive: Clampless, endless, two side buttons
Waterproof: IPX6 ( IEC 60529: 2001)
Operating Temperature: -20 to + 50 ° C ( -4 ° F to 122)
Size Width: 130mm ( 5.12in) .
length: 215mm ( 8.46in) .
Height: 135mm ( 5.31in) .
weight: 1.7kg ( 3.7 pounds)