The yale security easy fit standard alarm is a basic keypad operated system which is ideal for a flat or terraced or semi detached homes the keypad enables setting or unsetting of the alarm via an access code the system is pre set with a 20 second exitentry period and will allow the entire property to be either armed or disarmed the kit is pre linked for easy programming and features advanced jamming detection it has an extra secure rolling code transmission and can be expanded to include 30 dev