Larson Davis, a division of PCB Piezotronics, is a world leader in the design, manufacture, and distribution of acoustic and vibration measurement systems used for environmental noise monitoring, workplace noise/vibration exposure, and general noise surveys. The Larson Davis product line includes products such as Type 1 Sound Level Meters, Permanent & Quasi Permanent Outdoor Noise Monitoring Terminals, Environmental Noise Processing Software, Noise & Vibration Dosimeters, Workplace Noise Evaluation / Management Software, and Measurement Microphones.