Low Noise Measurement with Model 831 (831-LOWN) Low Noise Level Measurement Measure less than 6.5 dBA with a handheld, portable system using the Model 831 Highlights n No external power supply required 10 Hz to 16 kHz frequency range Highly portable Single channel Product testing Environmental noise Easily make measurements to 6 dB A-weighted using the Model 831 sound level meter paired with the 378A04 low noise microphone and preamplifier. Due to the innovative design of the 378A04 which uses a prepolarized microphone and ICP (constant current) interface, the combination produces a highly portable system that is battery powered and intuitive to use. Larson Davis

Low Noise Measurement with Model 831 (831-LOWN) 378A04 Specifications Ordering Information El ®LARSON DAVIS A PCB PIEZOTRONICS DIV. 3425 Walden Avenue, Depew, NY 14043-2495 USA Phone 716-926-8243 Toll-Free in USA 888-258-3222 Fax 716-926-8215 E-mail [email protected] Web Site www.larsondavis.com ISO 9001:2000 CERTIFIED © 2016 PCB Group, Inc. In the interest of constant product improvement, specifications are subject to change without notice. PCB, and ICP are registered trademarks of PCB Group Inc., SoundTrack LXT, Spark and Blaze are registered trademarks of PCB Piezotronics, Inc. HV Manager...