Technical data:   Effective range:            200m   Minimum reading:             1″/5″    Angle measuring:           Optical Incremental   Effective objective lens diameter:       45mm  Magnification:              30X    FOV:                   1°30′   Image:             erect   Minimum line of sight:              1m    Angle measurement accuracy:             2″   Compensation range:              ±3′   Data Interface:              RS-232C   Wavelength:                    635nm   Spot size:              5mm/100m   battery:                   4.8V Ni - MH battery or four AA alkaline batteries

SuYiGuang LP210 series Laser Electronic Theodolite