Our products have stable performance and reliable technology. In the process of production and use, we have developed micro vibration instrument, angle measuring instrument, sliding inclinometer, inclinometer while drilling, multi-channel micro vibration instrument, natural vibration frequency tester and impact resistant servo accelerometer. For more than 20 years, the products have been sold to high-tech fields such as national defense, scientific research, colleges and universities in more than 20 provinces, cities and autonomous regions in China. They are ideal substitutes for automation. 5500 and 5600 series are good devices for measuring and controlling ultra-low frequency 0hz-100hz ultra-low frequency micro acceleration and various inclination angles and attitude angles. They are characterized by high precision, good stability, high resolution and high repeatability. They are suitable for the following technical fields: oil development, meteorological exploration, deep well measurement, vehicle handling performance measurement, geological drilling, geodesy, rail measurement Marine survey, inland navigation, high-rise buildings, flood season forecast, air, water, photographic shaking and micro displacement measurement