title: Is there an API or software to get accurate strength of a WiFi signals on Mac?
body: <p>Is there an API, shell command or AppleScript for getting an accurate reading of the current WiFi strength in Mac OSX? </p>
  
  <p>FYI I can also open a browser and use JavaScript if it has that value available. </p>
  
  <p>What I'm trying to do is check WiFi strength for different spots in my kitchen or living room. I need to check WiFi strength for each spot. If it's low I move to a new spot. The WiFi bars that OSX displays is not enough data for me. </p>