Whether interruption is present in the connections of automatic door constituting units is detected. The mounting bracket, in which a slit extending in a direction intersecting a loading direction of a rupture load is formed, includes a rigid portion disposed at one side of the slit and a breakable portion disposed at the other side of the slit which is breakable because of the presence of the bolt. Because polymeric fillers are generally softer than inorganic fillers, these adhesives are easier to remove from the tooth than conventional adhesives after debonding an orthodontic appliance. The monitor may be mounted on the piece of equipment and the condition monitor is able to be connected, either wireless or wired, to a secondary device. The second channel width of the second non-volatile memory cells is larger than the first channel width of the first non-volatile memory cells.