The GE Window/Door Alarm is a white, battery-operated door alarm with a 5m operating range and a 120 dB operating sound rating. It features instant alert notifications and is compatible with Yale systems. This unit is wireless and operates on Wi-Fi technology, making it ideal for indoor use in homes. Its compact size of 2.5 inches in height and 0.5 pounds in weight makes it easy to install and use for home security.