This video is about Survey Staff, how we can read survey Regular & Bar cod Staff in English. Regular staff use the same section with length lime 5-meter staff = 5 sections and 4 meters staff = 4 sections but in bar cod staff we use 4 sections in 5 meters length (4/5) and also regular staff after complete 1-meter use 1 and 2 meters complete use 2 number but in bar cod staff only use dots 1 meter 1 dot 2 meters 2 dots and 3 meters 3 dots 4 meters 4 dots