A microwave imaging sensor is disclosed for continuously monitoring the condition and status of an in situ reverse osmosis membrane that forms a semi-permeable barrier between a region of water containing a dissolved salt and a region of water which is intended to be substantially free of the dissolved salt. The disclosed system 20 includes a networked audio source node device 300 that couples to a plurality of network speaker nodes 100 via a TCPIP LAN network 200 where the networked audio source node device is a video device. The bolt is anchored into a bone, and its machine-threaded end passes through the elongated member and the stabilizer, and is engaged by a coupled washer and nut.