MEAN TIME BETWEEN FAILURE FIGURES FOR CAMPBELL SCIENTIFIC DATALOGGERS AS OF AUGUST 2009:

• CR1000 979
• CR10X  1829
• CR200   698
• CR3000 301
• CR5000 97
• CR800   670
• CR9000 43 in April 09….(42 units currently under warranty…39 months of no reported failures)

Campbell Scientific measures experienced MTBF each month by accumulating time from shipment through the warranty period for all of the same model units under warranty. We then divide the accumulated time by the number of warranty repairs done over that same time period. The figures given are in years.