I would like to know if the measure distance of this sensor is stated in the datasheet as 3-4m is this the
round trip? If it is the round trip then 4m will only detect objects at 2meters and closer(3m is 1,5 meter)
I tested this sensor and only get readings up to 103cm this is just over 1meter.
All the videos on youtube only show the sensors to measure on a ruler (thats 300mm) or a hand moving
in front of the sensor at close distance.
I did test 3 of these sensors all with the same result -- max distance 103cm.