Ring Alarm Contact Sensor - 2nd Generation - door and window sensor - Z-Wave - white (pack of 2)

The Amazon.com Ring Alarm Contact Sensor is a battery-powered door and window sensor designed to add contact monitoring to home security setups. The sensor uses Z-Wave wireless connectivity to report open and closed states, enabling remote awareness of entry points. Battery operation allows flexible placement without the need for wiring, making it easy to install on doors and windows for ongoing access monitoring.