Please allow me to make a brief introduction of calibration station collimator: New calibration station with CCD camera and LED screen, can be use for all brand of laser products, line laser level(2 lines laser level,3 lines laser level,5 lines laser level, 8 lines laser level, 12 lines laser level, 16 lines laser level), dot laser level, rotary laser level, auto level, Total Station, Theodolite, etc.. Accept customer-made, our engineer can design according your workshop area, and products requirement. More calibration station detail from: http://www.simaisurveyinginstrument.com/Calibration%20Station.html More products videos from: https://www.youtube.com/channel/UCVgQJEHDZTclZCWsKGDTxKw If any body interested, please feel free to contact with me. Mr.Lee Sales Manager International Trade Dept. Mob: +86-15656585389 Tel: +86-0551-65420563 Whatsapp: +8615656585389 Linkin: ...