A security apparatus includes a body with a socket that includes a first magnetic material, and a mount with a stem that is formed to fit into the socket and includes a second magnetic material. If the stem is inserted into the socket, the body is held in place by magnetic attraction between the first magnetic material and the second magnetic material. The position of the stem in the socket determines an azimuth angle and an elevation angle for the body with respect to the mount. The first and second magnetic materials can be magnets or ferromagnetic materials, such as steel.