1. Radar detection based on FMCW signal. 2. 24GHz frequency band, two transmit and four receive channels, enabling high-precision trajectory tracking. 3. Capable of accurate sensing of multiple moving, micro-moving, or stationary human bodies. 4. Application scenarios: home security, hotel management and monitoring, community health personnel monitoring, office monitoring. 5. Millimeter wave electromagnetic waves have penetration characteristics for non-metallic materials and can penetrate common glass and plastic. The LD2461 is a 24GHz millimeter wave radar module designed for human body detection, capable of accurately locating and tracking multiple targets (in moving, micro-moving, or stationary states) within the detection area, and outputs coordinate information via serial port. The module integrates two millimeter-wave radar chips, high-performance microstrip antenna, high-performance MCU, and peripheral circuits. It operates in the 24.00GHz to 24.25GHz ISM band with an operating bandwidth of 250MHz. Model: LD2461 Frequency: 24.00GHz - 24.25GHz Sweep bandwidth: 250MHz Modulation mode: FMCW Detection angle: azimuth ±45° / pitch ±25° Detection distance: stationary 5m / sitting 6m / exercise 8m Range resolution: 0.75m Range accuracy: 0.1m Angle accuracy: 2° Angular resolution: 15° Maximum equivalent isotropically radiated power: 13dBm Supply voltage: 5V Dimensions: 35 x 50mm Operating temperature: -40°C to +85°C Data format: serial port ASCII output Color: Green Material: Plastic Package Contents: 1 x Vehicle speed monitoring sensor set 1 x Connection line Note: Light reflection and display differences may cause slight color variation between the image and the actual item. Measurement allowance error is +/- 1-3cm.