levelling-staff
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levelling staff
HB50
graduated staff (or rod) for reading vertical heights to 5-mm accuracy in connection with a surveyor’s level
The staff is made of wood or suitable metallic or synthetic material, graduated in metres, 100-mm units, and 5-mm or 10-mm sub-units. The length of staffs is between 2 and 5 m, with all longer staffs being telescopic for easier transportation.