1. They are developed with technology jointly contributed by Tsinghua University and the Institute of Acoustics of the Chinese Academy of Sciences.
2. Since our PV60A/70A series products were introduced to the market in 2001, it has been 15 years. They have been utilized by thousands of customers in the industry and have become the de facto ultrasonic industry measurement standards.
3. Over the past 15 years, more than two hundred university research institutes have employed our instruments. Given that university research institutes often possess over 200,000 imported Agilent instruments 4294A, our instruments have been tested against imported Agilent instruments countless times. Indeed, the facts demonstrate that the test results of our instruments are entirely reliable.
4. Our instruments have been selected by many German and American ultrasound application companies as test instruments. The instrument is the key to ensuring product quality. If you choose a Chinese-made instrument, it must be based on full trust.

Our products have been used in the following units: the Department of Physics at Tsinghua University, the Department of Electronics at Peking University, the Department of Instrument Engineering at Shanghai Jiaotong University, Zhejiang University, Huazhong University of Science and Technology, Harbin Institute of Technology, Tianjin University, South China University of Technology, Tongji University, Xi’an Jiaotong University, the Department of Physics at Shaanxi Normal University, the Institute of Acoustics at the Chinese Academy of Sciences, 715 China Shipbuilding Industry Corporation, China Shipbuilding Industry Corporation, and a large number of Chinese companies, as well as some companies from Japan, Germany, France, the United States, Italy, Taiwan, Hong Kong, and South Korea. Therefore, the total number of units using our products has exceeded one thousand.