MET-202

MET-205

MET-210

Telescope

Length

165mm

165mm

165mm

Objective lens aperture

45mm

45mm

45mm

Magnification

30X

30X

30X

Image

Erect

Erect

Erect

Field of view

1°30′

1°30′

1°30′

Resolving power

3.3″

3.3″

3.3″

Shortest sighting distance

1m

1m

1m

Additive constant

0

0

0

Stadia proportion constant

100

100

100

Angle measurement

Minimum reading

1"/5"

1"/5"/10"

1"/5"/10"/20"

Accuracy

2"

5"

10"

Display

Display method

Double sides display

Double sides display

One side

IIIumination

Provided

Provided

Provided

Compensator

Tilt sensor

A provided

A providedB unprovided

B unprovided

Compensating range

±3′

±3′

-

Optical plummet

Magnification

3X

3X

3X

Field of view

5°

5°

5°

Focusing rang

0.5m∼∞

0.5m∼∞

0.5m∼∞

Level sensitivity

Plate level

30″/2mm

30″/2mm

30″/2mm

Circular level

8′/2mm

8′/2mm

8′/2mm

Data output

Output interface

RS232C

RS232C

RS232C

Power supply

Battery

Four XAAsize batteries

Four XAAsize batteries

Four XAAsize batteries