ShangHai Galaxy International Trade Co.,LTD, specializing in electronic surveying instrument.like total station,theodolite,autom MODEL MTS-802AMTS-802MTS-805TelescopeImageErectMagnification30XEffective Aperture45mmResolving Power4"Field Of View1°30'Minimum Focus1.5mDistance Measurement(under Fair Weather Condition)Range 1P3.0km2km1.6km3P4.0km3km2.5kmAccuracy2mm+2ppmxDMinimum Count1mmDistance ...