supply of automatic levelling instrument , automatic levelling instrument- sokkia or equivalent ip 56 with compensator setting accura cy 0.5second magnification (in x)24o, objective lens aperture 32 millimeter, field of view1˚25, minimum f ocus distance from thecenter of the instrument 1 meter, parallel plate micrometer with accuracy (standard deviation per 1km double - run levelling), without micrometer 1 millimeter, accuracy (standard deviation p er 1km double - run levelling), withmicrometer (may indicate 0 forwithout micrometer)0.5 mm, circular via l (bubble) accuracy (per2 mm) 10 minute, graduation on horizontal scale /circle 360 degree. warranty - 1 year [ warranty period: 12 months after the date of delivery ] ]