51 Single-chip Ultrasonic Rangefinder Module DIY DC 4.5V/5.5V LCD Display Measure Distance Alarm Distance Can Be Set 3CM-150CM
USD 6.61USD 8.26
51 Single-chip Ultrasonic Rangefinder Module DIY DC 4.5V/5.5V LCD Display Measure Distance Alarm Distance Can Be Set 3CM-150CM