After I used kil-a-wat to monitor electric use, we thought of using doppler   
   ultrasound and even magnetism (water is ionic, after all) to track water end   
   even steam usage. I never got a gadget cheap enuf. This was fifteen years   
   ago. Has anything changed? I imagine there should be ways of using DSP to   
   scavenge data from conventional celfon sensors, but that would freak out the   
   instrument hardware vendors. I once got the FLIR expo booth convulsing when I   
   thought I found an IR imaging apk that really worked.   
      
   --   
   	 Vasos Panagiotopoulos  panix.com/~vjp2/vasos.htm   
     ---{Nothing herein constitutes advice.  Everything fully disclaimed.}---   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)