These are good durable units. I own this model and one of the previous models. Calibrated, the results are almost identical to those of more expensive units like a Druck. Went head to head with a Transcat technician one day. He had $15,000.00 worth of equipment (Druck) and our results were basically identical.http://media.fluke.com/images/54-2b-01a-600x402.jpg
