Item Type: Perimeter Trip Alarm Material: Aluminum Alloy Package List 1 x Perimeter Trip Alarm 2 x Accessories 1MAIN PURPOSE: Used to establish a surrounding environment, prevent dangerous animals from entering the camp, prevent thieves from entering the home. 2MOUNTING LOCATION: Can be quickly deployed on small roads and entrance areas, connecting to homes, camping tent doors, and other locations. 3ALUMINIUM ALLOY: This alarm is made of aluminum alloy, corrosion resistance and oxidation resistance, and can be used in harsh environments. 4SPRING TRIGGER: The perimeter trip wire alarm is spring trigger design that can be reloaded and reused, which is efficient and practical. 5EASY OPERATION: Simply pull on the alarm head and insert the security gate to use, effectively ensuring property and individual security.