In a CW radar system for detecting motion behind a wall involving modulation of the radar transmission, means are provided to interrupt the CW wave when motion is detected and to use the same radar transmitter to transmit a serial digital message to a remote monitoring receiver. A hollow projection extends radially from the convex side of the pressure bearing section and is received with a recess of the housing to locate the liner. The sample has a magnetic field applied thereto. A module, deployable unit of software components, is also an addressable and programmable object during a run time, thereby facilitating implicit registry of software components on the target device and reducing storage space required on a target device, as well as the CPU processing power. The circumferential lip of a standard recycling bin is then supported by the hook elements, with the bin swinging backward to butt against the cart frame for additional support.