supply of compact electronic wheel diameter gauge with digital led displaycompact electronic wheel diameter gauge with digital led display,compact electronic wheel diameter gauge with digital led display for measurement of w heel diameter in both mounted [in-situ] and un-mounted wheels of rolling stocks. the gauge gives direct di ameter reading on digital display with android phone for rail wheel set, measuring of diameter according to the three points technique. specifications:-measuring range available 600 to 1200 mm with suitable m aster setting ring & calibration and warranty certificate, measuring accuracy: 0.1 or 0.2 mm, a pplicability: b.g. wheels, least count: 0.1 mm or 0.01 mm ,recording of readings : yes available on androi d phone make- pie, electronica or similar [ warranty period: 30 months after the date of delivery ] ]