Add reliable perimeter awareness to interior openings with the 2GIG-DW10E-900 door and window sensor. Built for indoor placement, it uses 900 MHz two-way communication to support consistent reporting back to the panel, helping security teams maintain visibility across doors, windows, and other access points. The white housing is suited to interior finishes, where hardware should stay unobtrusive while still doing its job. That makes it a strong fit for professional installations in offices, retail, and light commercial environments where appearance, coverage, and dependable operation all matter. This sensor is the kind of component that earns its place in a system by being simple, specific, and reliable. It is designed for the openings that define a building’s perimeter from the inside, giving installers a straightforward way to extend monitoring without overcomplicating the deployment.