Note that digital height gauges are now becoming more common as they are much quicker to set up and more accurate to set. Precision vernier height gauges must be stored in their original packaging case and should be carefully used and maintained. If you suspect that the instrument is inaccurate , it must be reported to your supervisor at the earliest opportunity to reduce any wastage that would otherwise be caused. Remember that the inaccuracy could be your fault , so a “back footed�?approach could prove to be appropriate.