Sichuan Surveying and Mapping Instrument Company introduces you to the relevant knowledge of the theodolite Futian JFT2A:

　　Model:JFT series laser electronic theodolite imaging:positive image magnification:30X

　　Effective aperture of objective lens:47mm Field of view:1°30'Short viewing distance:1m

　　Sight distance multiplication constant:100 Resolution:3.75"Angle measurement

　　Angle measurement method:coded small display reading:1",5",10"

　　Angle measurement accuracy 2",5",10"Optional compensation range:±3"

　　Long level accuracy 30"/2mm Round level accuracy 8/2mm

　　Laser wavelength:635nm

　　Laser power:10mW Effective range:(daytime)150m

　　Spot size:5mm/100m Spot center deviation from collimation axis:s5"

　　Laser power supply:3.3V DC Working temperature:-20℃~+50℃

　　Battery:7.4V Rechargeable lithium battery Instrument weight:6.5kg