Technical Highlights of Annaien Doppler Velocity Flow Meter
Today we introduce our fully self-developed product — the Doppler Velocity Flow Meter. Adopting acoustic Doppler technology, it is mainly used to measure water level, flow velocity and flow rate in drainage pipe networks, rivers and channels.

Integrated with multiple built-in sensors, the device can simultaneously collect data on flow velocity, liquid level, temperature and other parameters. It applies the Fast Fourier Transform (FFT) algorithm for data processing to guarantee stable and reliable measurement results. Designed for low power consumption, it is equipped with high-performance low-power MCU chips. Its maximum power consumption is 0.8W, while the minimum is below 0.14W.
The product features a patented exterior design, which effectively minimizes the impact of sediment deposition on site and reduces maintenance work for users. It has passed multiple third-party tests and obtained relevant inspection reports. Certified to IP68 for water resistance, corrosion resistance and explosion protection, it can adapt to the harsh and complex operating conditions of drainage pipelines.
In addition, it has completed tests for high and low temperature, damp heat, EMC and other items with corresponding certifications, supporting operation across diverse temperature environments in different regions. Its operating temperature ranges from -30℃ to 80℃, outperforming most domestic counterparts.
Bidirectional flow measurement is its core advantage. Users can select either bidirectional positive/negative flow or unidirectional flow modes for wider application scenarios.
Feel free to contact us for more product details.