Mensor was founded in 1969 in Houston, Texas, and has been dedicated to the design and manufacture of the finest high-accuracy measurement, calibration and control instruments and test systems for pressure available. In 1978, Mensor relocated to San Marcos, Texas. From the first Mensor quartz manometer produced for the aviation industry in 1970 to the advanced computer-controlled pressure calibration systems of today, Mensor's name has become synonymous with reliability and innovation in the field of precision pressure measurement, control and calibration.