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 provided B 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 |