The Astrell mini-alarm is a compact ABS device that signals when a door or window has been opened, using an audible alert. It is lightweight and small enough to fit many doors and windows without getting in the way of their normal use, making it suitable for basic home security monitoring.

• Sounds an audible alarm when a door or window is opened
• Includes 2 remote controls for arming/disarming
• Fits a wide range of doors and windows
• Does not hinder normal opening and closing