soundlevelmeter

http://indomonster.com/soundlevelmeter

Multifunctional Digital Sound Level Meter is designed to measure the sound pressure level and are commonly used in noise pollution studies for the quantification of almost any noise, but especially for industry and the environment. The device meets the requirements of Safety Engineers measurement, Health, Safety and Noise Control Office of industrial quality in various environments. It features a bar-graph Shows & Max Value Holding, a built-in condenser mic and a digital display. It accurately measures what sound levels of sound level for the mechanical environment, vehicles, boats, loudness computer fans and other noise with accuracy of ± 1.5 dB. It has the following advantages: 30 ~ 130db range, with weights A / C, rapid response / slow, equipped with Max mode that catch and hold the maximum noise level, providing a signal that the windscreen to filter-out unwanted and 9V batteries at no charge additional. In almost all countries, the use of A-frequency-weighting is mandated to be used for the protection of workers against noise-deafness due and the only weighting mandated by international standards, the frequency weighting " C" being optional equipment.

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