Description

When this pebble sized device is activated, it detects movement of any sort that takes place within a 30-foot radius and gives off a loud, high pitched whistling sound until it is deactivated. When the user speaks the command word to activate an alarmstone, it begins working tow rounds afterward (giving the user time to vacate the area without setting off the alarm). One command word activates or deactivates a stone, but no two stones have the same command word.