SIGTRONICS SAS-640 

Sigtronics SAS-640	Product Code: PN-788 Price: Check Latest The SAS-640 Intercom Series reduces squelch adjustment to the push of a button, offering an increased level of safety and convenience to the pilot. No more setting the squelch, one touch of the squelch button and the intercom sets itself to work perfectly in the quietest or noisiest of aircraft.