I ordered the calipers due to favorable price and the multiple positive reviews. It is sold under various party labels. Here can be personalized with the calipers, I received, perform reproducible measurements. As also described by other reviewers, it is often on completely meaningless values. In addition, often not re-appear after zeroing in fully collapsed condition and then measuring the pushing together of the zero value, but significant deviations of up to several centimeters, with also values in the minus range. The deviations are not systematically, therefore it obviously is not an incorrect calibration, but a fundamental defect / error of the electronics. The Messchieber goes back definitely to the supplier.
