FM136 Digital Keypad/Intercom FM136 Digital Keypad/Intercom, Wireless or Wired EZ to install wireless or wired applications. Superior range and crystal clear communication 500 feet wireless or 1000 feet wired. Accept or deny access to your property at the touch of a button. *Increased surveillance lets you screen visitors and solicitors from safely inside your home *Convenient interior intercom is mobile and can be used anywhere inside your home, just like your cordless phone *Rechargeable batteries allow operation even during power outages *Model FM136 From the Fences + Gates Department.