Door Sensor out of range / Aluminium Doors

[sidjohn1]

Multi Sensor on a Metal Frame

I have a metal door with a metal frame on the wall around it that I want to install a Multi Sensor on. But since the frame around the door is metal, it constantly shows that the door is closed because the sensor’s magnet senses the metal door frame. Is there a quick fix to this besides putting an inch of velcro between the door frame and the sensor?