The 5800MINI provides all of the advantages of Honeywell's field-proven, quick-install 5800 Series wireless devices, with the addition of signal transmission and low-battery LED indicators. It virtually disappears when installed and blends with any d?cor, making it ideal for applications where aesthetics are critical such as ornate doors, casements and double-hung windows. The 5800MINI provides a single zone of protection and installs easily on doors or windows with the included double-sided adhesive tape.Main Features:? Signal transmission and low battery LED indicators:? - Blue LED - Ensures optimal magnet placement? - Green LED - Sensor is transmitting? - Red LED - Low battery warning? Compact and unobtrusive design- ideal when aesthetics count? Easy-to-open case requires no special tools? Case tamper protection? Ideal for double-hung windowsApplication/Usage:? Door, Window