What accessories can I add to my EF KIT System?See image below for more information: Related Posts How many accessories can I add to my alarm? How Do I Install an EF Kit 2-Telecommunicating Alarm What accessories can I add on to my Sync Smart Home Alarm? How do I add devices to my Standard alarm? Can I 'part arm' the EF Kit 1, using the HOME button on the keypad? How do I perform a factory reset on the EF Kit 2?