Introduction HLK-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 shown material:PC+Metal Specifications Frequency 24G-24.5GHz Modulation Detection distance Greater than 4m static human presence detection, Greater than 16m motion detection Range hanging height , static body detection coverage radius 2m, mobile detection radiusGreater than 5m supply 3.6-5V Current 70mA Output serial level 3.3V Detection cycle adaptive Antenna 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 level Startup time about 15 seconds Package Contents: 1pc 24GHz millimeter wave human presence detection module Only 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.