Philips InRange Bluetooth smart leash AEA1000 for iPhone 5/4S & the new iPad
Have not found the distance range announced by Philips for activating the alarm.
As Bluetooth Spec, Range is from 5m to 100m
Class 1: range up to 100 meters (in most cases 20-30 meters)
Class 2: range up to 30 meters (in most cases 5-10 meters)
9 February 2013