Smart Car Robot E18-D80NK Infrared Obstacle Avoidance Photoelectric Sensor Proximity Switch 3-80cm Detection Range Adjustable
https://www.vogueparade.com/shopping/EN/4003/1/1005002576356260/smart-car-robot-e18-d80nk-infrared-obstacle-avoidance-photoelectric-sensor-proximity-switch-3-80cm-detection-range-adjustable//