The RD-300s series radar water level meter is a high-precision, low-power product designed for non-contact liquid level measurement in scenarios such as surface water and underground pipe networks. This product employs Pulse Coherent Radar (PCR) technology, utilizing 60G millimeter-wave radar as the carrier signal, and achieves millimeter-level measurement accuracy through an optimized signal recognition algorithm. This low-power, non-contact measurement technology ensures that measurements are unaffected by environmental temperature, water surface vapor pressure, airborne dust, water pollutants, and sediment. The optimized wave-filtering design further enhances the accuracy and stability of the measurement results. A mobile APP connects via Bluetooth for convenient on-site debugging and maintenance. This series of water level meters can also be equipped with a built-in RTU function, allowing on-site data to be directly uploaded to a cloud platform through the built-in wireless communication unit, and enabling remote debugging and device program upgrades. It features high integration, compact size, easy installation, and minimal maintenance requirements.