sentences:  Additionally, the group offers lab and field calibration services  and operates various process training facilities in the US.Endress+Hauser produces flow, level, pressure and temperature instruments in Greenwood, Indiana, and liquid analysis technology in Anaheim, California; Kaiser Optical Systems Inc. manufactures Raman analyzers in Ann Arbor, Michigan; and SpectraSensors Inc. with headquarters in Houston, Texas, assembles its TDLAS gas analyzers in Rancho Cucamonga, California.According to Endress+Hauser, 80 percent of the instruments delivered in the US are made in the US.