Ultrasonic sensors, as the name suggests, are sensors that measure distance using ultrasonic waves.Ultrasonic waves are emitted by the sensor head, and the ultrasonic waves reflected back by the target object are received by the sensor head again. Ultrasonic sensors measure the distance to a target by measuring the "time" from transmission to reception.

M12,M18,M30 ultrasonic sensor

Sensing distance 500/1000/4000mm

Equivalent to P+F etc.