تماشای ویدئو معرفی دستگاه صوت سنج دسیبل سنج از آی-ویدئو

Get one today! http://www.parts-express.com/pe/showdetl.cfm?Partnumber=390-722 This Mini digital sound level meter measures from 40 dB to 130 dB and is less than 6" in length! Great for measuring and monitoring noise and sound in any environment, including in the work place, auto sound environments, and home theater rooms