Maintenance packages offer PME customers a proactive approach to scheduling and saving on calibrations. Maintenance, Repairs and Operations (MRO) checks are required for the longevity of the miniDOT® Logger and miniDOT® Clear Logger lifespans. The first MRO checks and recalibration will be completed at the end of first year of ownership. The second MRO check and recalibration will be completed at the end of the second year of use. These checks are designed to give customers the best product experience and peace of mind to ensure accurate data collection.