The HLK-LD2452 is a high- multi-target recognition sensor that accurately locates and tracks human subjects, measuring distance, angle, and speed. It is primarily used in common indoor environments such as homes, offices, and hotels, enabling the positioning and tracking of multiple individuals. Supported frequency band: 24GHz to 24.25GHz Maximum sweep bandwidth: 0.25GHz Power supply voltage: 5V Dimensions: 23 x 42mm Ambient temperature: -20C to +70C Sensing range: 6m (max.) Range resolution: 0.72m Ranging accuracy: 0.15m Angle accuracy: 2 to 20 Detection angle: Azimuth 60 / Elevation 30 Data refresh rate: 10Hz Average operating current: 126mA Color: Blue Material: PCB Package Contents: 1 * LD2452 Sensor Module 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.