Product Description Contact rail gauge, also called third rail gauge, is a special measuring instrument for measuring the guide height of contact rail (the vertical distance between the horizontal surface of contact gauge track) and the pull out value (the horizontal distance between the inner surface of contact gauge track) in rail transit. Specification Model LJ-JCG-I Type Third Rail Measuring Gauge Material Aluminium Alloy Dimensions (L x W x H) (mm) 1650*120*250mm Vertical Measure range 1418±25mm or customize Horizontal Measure range 100±10 mm or customize Accuracy 0.5mm
