1. Radar detection based on FMCW FMCW signal. 2. 24G frequency band, two send and four receive, high-precision trajectory tracking. 3. Achieve accurate sensing of multiple moving, micromoving or stationary human bodies. 4. Application scenario: home security, hotel management and monitoring, community health personnel monitoring, office monitoring, etc. 5. Electromagnetic waves in the millimeter wave band have certain penetration characteristics for non-metallic substances, and can penetrate common glass and plastic materials. The LD2461 is a 24G millimeter wave radar module for human body perception, which can accurately locate and track multiple targets (moving, micro-moving or stationary state) in the detection area, and output coordinate information through the serial port. The module consists of two millimeter-wave radar chips, high performance microstrip antenna, high performance MCU and peripheral auxiliary circuit. The operating band is 24.00GHz to 24.25GHz, which is the ISM band. The operating bandwidth is 250MHz. Model: LD2461 Frequency: 24G-24.25GHz Sweep bandwidth: 250MHz Modulation mode: FMCW Detection Angle: azimuth Earth 45 / pitch Earth 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 omnidirectional radiated power: 13dBm Supply voltage: 5V Dimensions: 35 X 50mm Ambient temperature: -40C to +85C Data format: serial port ASCII output Colour:Green Material:plastic Package Contents: 1 set x Vehicle speed monitoring sensor 1 x connection line 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.