Home About Us News Products Sales Network Download Chinese | English | E-mail Sound Level Meters Noise Dosimeter Real Time Signal Analyzer Sound Calibrator Condenser Microphone& Preamplifier Founded in 1992, has been the main and innovative manufacturer of international standards acoustic and vibration measurement instruments in China. We provide solutions of outdoor noise monitor and focus on designing and developing advanced and user-friendly instruments. InterNoise2015 Exhibition AWA6228+ Sound Level Meter INTERNOISE 2014 in Melbourne 21st International Congress on Sound and Vibration INTERNOISE 2013 in Austria Add : No. 37 Xianxing Road Xianlin Town,Yuhang District, Hangzhou 311122 P.R.China Fax : +86 571 85022955 Tel. : :+86 571 85021931 Copyright © www.hzaihua.com All right reseved