There're 4 branches, 2 holding subsidiaries, and 8 technical service centers across the country, got Hangzhou Yuhang District Government Quality Award and "Invisible Champion" Cultivation Enterprise of Zhejiang Province, won the "Professional, special and new" small giant enterprise honorary title from the ministry of industry and information technology.

The automatic test system for sound level meter performance was successfully developed and put into use.

Successfully developed sound level meter model AWA6292 based network technology and developed smart microphones and noise measurement cloud platform

Founded Hangzhou Aihua Electronic Research Institute.

Developed and launched the integral sound level meter model AWA5610.

Manufactured Electroacoustic test instrument.

Launched noise statistical analyzer model AWA6218A/B andcumulative production of 8000 units.

Launched noise spectrum analyzer Class 1 model AWA6270.

Hangzhou Aihua Instruments Co., Ltd. was established in xihu District Hangzhou.

Developed measurement microphones cartridges.

Developed digital signal processing technology and launched real-time noise spectrum analyzer model AWA 6291.

Aihua products started to export to Singapore market.

Launched environmental noise automatic monitoring system model AWA 6218J and multifunction sound level meter model AWA6228.

Developed the sound intensity measurement analyzer model AWA6290S.

Moved to new workshop in Yuhang District Hangzhou.

Released the noise measurement software for smartphones supporting Android and iOS system and successfully developed AWA6256B+T triaxial vibration analyzer.

Identified as a provincial High-tech Enterprise R&D Center.

The new automatic test system for measurement microphones performance was successfully developed and put into use.

Successfully developed building acoustics test system

Successfully developed Acoustics array system.