Digital track gauge can directly read the measurement values of railway track gauge, super elevation ,check rail gauge and back to back distance through microelectronics, embedded and sensor technologies and OLED display screen. Product Paramenters Model(1435mm) GJC-TJG1 Track gauge(mm) 1384-1470 Gauge rail check gauge(mm) 1364-1450 Guard rail face gauge(mm) 1344-1430 Superelevation measuring range -200~+200 Flangeway Clearance 20-107 Superelevation division value 0.10 Track gauge division value 0.1 Track gauge max indication error �?�±0.25 Superelevation error ±0.45 Application rail line railway speed less than 350km/h