supply of digital auto level lcd instrument with aluminium barcode staff 5 meter and aluminium tripod stand double locking stand. , digital auto level lcd instrument with aluminium barcode staff 5 meter and aluminium tripo d stand double locking stand. height measurement accuracy, electronic measurement (standard deviation per 1 km double - run levelling ) using barcoded/invar staff - 1/0.7 - 2 millimetre and distance measureme nt accuracy, electronic measurement at 30m sighting distance using standard barcode staff -15millimeter, maximum/measurement distance (electronic -2m/100m, minimum brightness -20 lux circular vial sensitivit y (per 2mm)- 10 minute, measurement modes - single, repeat, tracking. typical measurement time 2 secon d. graduation on horizontal scale/circle - 360degree/400 gon , graduation interval -1 degree/1 gon staff, obj ective lens aperture -42mm, field of view (at 100 m) - 1 30.feature like horizontal fine motion screws with double sided endless drive for fast and easy aiming, software features : viewing, exchanging, managing. a ccessories included lens, plump bob, vinyl rain cover, sunshade, tool kit etc., dimension 230x150x210mm, nternal rechargeable battery, supports 12v external battery, 2000 mah or above, usage 15hrs and item wit h 1 year warranty make : sokkia/leica/geomax or any equivalent [ warranty period: 12 months after the date of delivery ] ]