Lower is easy to stand above with a foot on either side.
How to fix garage door sensor alignment.
But if the light on the receiving sensor is blinking you may have problems with garage door sensor alignment.
Proper height for a garage door sensor is 4 to 6 inches 10 2 to 15 2 cm.
Garage door sensors are designed to prevent the door from closing if something obscures the sensor.
Since the sensors are often placed 6 above the ground all sorts of items could get in the way.
If your garage door sensors are outside of this range remove them entirely from the garage door frame and install leveled inside the safe zone.
Higher than that can miss many low lying objects including pets.
Sensors may fall out of alignment over time so it s important to understand how to align garage door sensors.