◆ March 1999 – Qingdao Ainuo Instrument Co., Ltd. was established. Specialize in intelligent control and measurement instruments research, development and production.
◆ April 1993 – The company started to produce new model digital electrical parameter measurement testers.
◆ January 1995 – Begin to research and produce intelligent controller card.In august 1995, we were chosen by Haier to produce their refrigerator’s intelligent controller card.
◆ January 1996 – The first batch of SPWM electrical safety tester in production.
◆ February 1996 –The merger of Qingdao Ainuo with Jinan Ainuo occurred.The new Company's name is Shangdong Ainuo Electrical Instrument Co., Ltd. Or short for Ainuo Instrument Co., Ltd.
◆ August 1997 – From the request of Chinese Scientific Measurements Research Insti-tute, We hosted the first electrical appliance measurement and laboratory technology con-ference.
◆ October 1997 – The first batch of program control frequency conversion Power Supply was developed and produced.
◆ June 1998 – The release of our 9651 Model Electrical Safety Comprehensive Tester.
◆ November 1998 – Passed ISO 9001 International quality systems certification. Also was considered as an advanced corporation by Qingdao Advance Technology institute.
◆ December 1998 – The experts from the AC/DC Energy Measurement Committee unani-mously recommended us to be the first communication.
◆ August 1999 – The release of our 98 series linear amplifier high precision measurem-ent power supply.
◆ May 2000 – The release of our intelligent high frequency LCR meter.
◆ June 2000 – The release of our 98BF series induced withstanding voltage tester.
◆ December 2000 – Became the Chinese technical measurement committee, withstan-ding voltage certification manufacturer member , participate in the draft of withstanding vo-ltage testing guideline
◆ June 2001 – By using BS930 surface mount and online tester from Germany, we cha-nge our manufacturing process and improved our production quality.
◆ July 2001 – The release of noise cancellation , 47-63Hz and 400Hzsecond generation frequency conversion power supply.
◆ August 2001 – Release of new draft withstanding voltage testing guideline
◆September 2001 –Passed the ISO9001 version 2000 quality system certification.
◆ August 2002 – Selected as communication unit of the Electrical / Magnetic measurem-ent technology committee.
◆ 2003 – Ainuo's software was rated as high technology product.
◆ 2004 – Successfully developed a world leading audio amplifier.
◆ 2004 – The release of our first generation digital electrical safety tester.
◆ April 2005 – Ainuo's Emergency Power Supply(EPS) successfully passed the Chinese Fire Department certification.
◆June 2005 – Headquarter in Qingdao was relocated to a new building.
◆ July 2005 – From the request of Electrical / Magnetic measurement Technology comm-ittee, Ainuo successfully hosted the Withstanding Voltage Tester, Ground Bond Tester and insulation Resistance Tester Certification Conference.
◆ July 2005 – Ainuo hosted “The first Strategic Partnership Conference”.