RDFM radar doppler open channel flowmeter: A non-contact flow monitoring solution utilizing FMCW millimeter-wave radar for precise velocity and level measurement in open channels. Delivers real-time discharge data with <±2% accuracy, unaffected by weather, sediment, or water quality. Ideal for agricultural irrigation, hydroecology, and flood monitoring.   Ultra-long battery life Protection rating Bluetooth configuration Radar measurement Compact size Superior Stability