Matheson FM-1050 Series Rotameter, ME11A001E440

A pneumatic air column bore gauge from Tesa Technology (Brown and Sharpe), stored in a custom orange foam-lined hard case. This instrument uses compressed air delivered through a braided Viton hose to perform non-contact dimensional measurement of internal bore diameters. A flat circular setting master disc is included in the kit for calibration reference. A cable with a multi-pin connector is also present, consistent with an electronic output or display interface. The column scale tube displays a red and blue indicator element. The number 12950 is stamped or labeled on the lower portion of the scale column, consistent with a nominal bore reference of 12.950 mm. A caution label specifies that safety glasses should be worn during use. The unit is identified by a Tesa Technology barcode label reading 455615, which appears to be a catalog or serial reference. The internal item designation 52441-176 is present on an additional label. No OEM model number or MPN was legible from visible evidence. Tesa Technology is a Switzerland-based subsidiary of Hexagon AB and produces high-precision dimensional measurement instruments for metrology and quality control applications in industrial manufacturing environments. All specifications visible on the instrument are documented as observed; the OEM model designation could not be confirmed and should be verified before listing.

Stock # 0426-01178