Does the eGauge require calibration?
All EG30xx and EG4xxx meters are calibrated during production. Once this initial calibration has been performed, the meter requires no ongoing inspections, maintenance, or calibration.
Although all meters are calibrated to the same standard during the production process, meters may optionally be purchased with a calibration certificate. This certificate can only be generated at the time of purchase. For an sample certificate, see this article.