Digital Rail Offset Ruler This digital railway offset ruler is special equipment which is used for railway turnout offset distance and frame size Measuring the distance between the working edge of straight stock rail and the closure rail working edge BENEFITS 1 Durable Adopt the high strength material not easy to wear out 2 High Accuracy Reach 005mm 3 Stable insulation performance The ruler body is equipped with insulating board which is made of epoxy glass fiber board FR4 It has high mechanical strength performance under the temperature of 40 120 The size of the mechanical ruler is stable and never degenerates and the electrical insulation performance is stable in high humidity environment 4 Accept customized 5 Digital displayeasy to read 6 Multifunctions with wide usagecould be used for measuring two kinds projectssuitable for different demands 1Measure the offset distance for the standard track gauge turnout 2Could be used as track square ruler for measuring the right alignment of rail tracks 7 High hardness Measure Heads Made of Rockwell 52 steel high hardness and not easy to rust Specification Model LJSZJCI Type Digital Rail Offset Scale Ruler Material Aluminum alloy Dimensions L x W x H 17103540cm Type Digital Measuring Rang 1001400mm or Customization Indication Error 04mm Accuracy 005mm Insulation Resistance 1M