Germanow-Simon Machine Company, founded in 1916 by Harry Germanow and Julius Simon in Rochester, New York. \r\n\r\nTel-Tru Manufacturing Co. is a leading manufacturer\r\n of temperature measurement and related instrumentation products. Tel-Tru offers a full range of high quality thermometers, pressure gauges and related instrumentation accessories all designed and manufactured for worldwide distribution to Industrial, OEM, and Commercial markets.