This mini magnetic contact switch alarm comprises a magnetic bar and a main part ,it will sound an alarm, when they are separated. the compact design make it easily and quickly to fix and install on any frames such as window, door,drawer,cabinet etc. This is a new alarm device system that adopts a magnetic Type Wireless Door Window Safety Contact Magnetic Security Alarm. Portable enough to take with on business trips and vacations keep yourself and your property safe and security. The intelligence gives a decent appearance which is economical and practical. Magnetic sensor switch detects entry. Easily mounted to windows or doors with included double sides’ adhesive tape, no tools required. Other great uses are for your cupboard, shed, garage, toolboxes, etc.