Sensors, Inc. is the leading manufacturer of portable emissions test systems for real-world applications. Our products reflect an engineering focus on innovation, timeliness, and quality as well as the latest manufacturing techniques. Sensors, Inc. also provides solutions for engine test cells, end-of-line testing, and comparison studies of after-treatment devices and fuel additives. Technologies include NDIR, NDUV, and FID for gaseous measurements, a pressure differential technique for measurement of total exhaust flow, particulate mass measurement using a quartz crystal microbalance technique, and partial dilution sampling systems. The SEMTECH product line is capable of testing diesel and gasoline engines (SEMTECH-DS, SEMTECH PPMD and SEMTECH EFM2). Sensors' headquarters in Saline, Michigan houses administrative, engineering and manufacturing facilities.