Larson Davis, Inc. is a world leader in the design, manufacture, and distribution of acoustic and vibration measurement systems and industrial hygiene instrumentation. The Acoustic Test Products (ATP) division specializes in sound level meters, analyzers, digital sensing systems, microphones, human vibration meters, software, and acoustic systems. ATP offers both standard and custom systems for audiometric calibration, building acoustics, environmental noise monitoring, modal analysis, sound intensity, sound power testing, and others. The Industrial Hygiene (IH) division specializes in rugged, easy to use, and powerful instrumentation for the Safety and Health professional including noise dosimeters, sound level meters, octave band analyzers, and human vibration exposure monitors
