Digital Universal Crossing Gauge - UCG001W (IP65)Simple to Use, push On Off button to turn on Set Imperial Metric for option * Measure the vertical wearing of a crossing tongue * Measure the vertical wearing of a crossings wing * Measure the reduction value of a point rail * Measure the height difference between the guard rail and basic rail Press Hold to remove the Gauge from Rail for reading in standing position Waterproof with IP65 compliant with working in server weather condition Precisely for