Patent ID: 7557722

Claim:
A method comprising: a) monitoring at least one condition signal with at least one processor of a control panel apparatus, which at least one condition signal is associated with a depth level of a fluid in a reservoir, wherein the apparatus includes a door in hinged connection with the housing, wherein the door is comprised of a non-opaque plastic, wherein the apparatus includes a visible alarm output device in operative connection with the at least one processor, wherein when the door is in a closed position with respect to the housing, an interior space formed by the door and housing includes therein the at least one processor and the visible alarm output device, wherein the door includes an integral projection comprised of the non-opaque plastic, wherein the projection extends outwardly from the control panel when the door is in the closed position, wherein the projection includes a cavity therein, wherein at least a portion of the visible alarm output device extends into the cavity of the projection; b) determining with the at least one processor that the at least one condition signal corresponds to at least one alarm level; c) responsive to (b) causing with the at least one processor, the visible alarm output device to output a visible alarm signal, wherein the visible alarm signal includes light emitting through the non-opaque plastic projection of the door.