Using FMCW waveform and chip proprietary advanced radar signal processing, to achieve accurate detection of liquid and material height. The product is mainly used in hydrological monitoring, urban pipeline network, water level measurement of fire-fighting water tanks. Support UART output, plug and play, can be flexibly applied to different intelligent scenes. Frequency: 24GHz(23-27GHz) Modulation mode: FMCW Scanning bandwidth: 4GHz Detection distance: 0.15m-10m EIRP parameter: 11dBm(-6dB dual range) Horizontal/vertical range: 12 Ranging accuracy: 3mm (theoretical value) Reporting period: 160ms (50-1000ms/configurable) Ambient Temperature: -40-+85 Power supply range: 3.3V(3.0-3.6V)@1A Specifications:Test Kit Colour:Red & Gold Material:PCB Package Contents: 1 * LD2413 module 1 * CH340 serial port small board 1 * 2.54mm*5Pin cable(The cable color is random, and the designation is not accepted) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.