An attachment system for a door or window, the attachment system being configured to sense a condition of a door or window, the attachment system including: a securing member configured to be mounted to a frame member of the door or window; and a module, configured to be coupled to a frame member by attachment to th...

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A lock indicator and a mechanical lock assembly, comprising: a switch; a transmitter coupled to a power source; and a bolt member moveable between a retracted position and an extended position with respect to the housing, wherein the switch is configured to engage the bolt member and is actuatable by the bolt member...

A lock apparatus including a cylinder lock and an actuation member configured to operate the cylinder lock via rotation of the actuation member with respect to a part of the cylinder lock, wherein: the cylinder lock includes a magnet, and the actuation member includes a smart actuation member circuit, the smart actu...