IntroductionHLK-LD1115H is a high sensitivity 24GHz millimeter wave human presence detection radar module. The main feature of this module is that on the basis of the function of the human body induction radar, it also has the function of judging the existence of the human body by detecting and accumulating small movements such as human breathing.Therefore, the presence detection within a certain range has higher accuracy and is not easy to miss.Color as shownmaterial:PC+MetalSpecificationsFrequency 24G-24.5GHzModulation CWDetection distance 4m static human presence detection, 16m Range hanging height , static body detection coverage radius 2m, mobile detection radiusGreater than 5mPower supply 3.6-5VCurrent 70mAOutput serial level 3.3VDetection adaptiveAntenna half power angle horizontal 57, vertical 24 (see the for the definition of antenna horizontal/vertical direction)Data Serial port ASCII output/high and low levelStartup time about 15 secondsPackage Contents:1pc 24GHz millimeter wave human presence detection moduleOnly the above package content, other products are not included.Note: Light 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.