IntroductionHLK-LD1115H is a high sensitivity 24GHz millimeter wave human presence detection radar module. The main feature of this module is 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 Detection distance Greater than 4m static human presence detection, Greater than 16m motion detectionRange hanging height , static body detection coverage radius 2m, mobile detection radiusGreater than 5m supply 3.6-5VCurrent 70mAOutput serial level 3.3VDetection cycle adaptiveAntenna half angle horizontal 57, vertical 24 (see the figure below 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 the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.