Larson Davis, founded in 1981, designs, manufactures and distributes acoustic and vibration measurement systems and industrial hygiene instrumentation. The company is divided into two product groups. The Acoustic Test Products division specializes in sound level meters, analyzers, digital sensing systems, microphones, human vibration meters, software and acoustic systems. It offers standard and custom systems for audiometric calibration, building acoustics, environmental noise monitoring, modal analysis, sound intensity and sound power testing. The Industrial Hygiene division specializes in powerful instrumentation for safety and health professionals, including noise dosimeters, sound level meters, octave band analyzers and human vibration exposure monitors. Larson Davis' customers include corporations in a variety of industries, including automobile manufacturers, aircraft manufacturers, defense contractors and the United States military. The company has headquarters in Provo, Utah, and offices and representatives throughout the United States.