Ordered two of these little parts - after noting that the older bars had begin to separate from the (plastic) housing along the door frame. There was also a plastic burning smell. Shipping was fast, significantly I think the price was right, usually a small part like this carries an unrealistic price tag. Replacement was fairly simple, five screws to remove the housing, locate the connectors for the sensors, plug in and replace. Since the repair we have been back to normal with auto cycle, a cheap intervention with exactly the right part needed. Good experience.