The R7051 Smart Indoor Siren alerts you and your loved ones when there is an issue with your security setup. You can connect the R7051 Smart Indoor Siren to other WOOX security devices, and it will emit a solid alarm sound whenever necessary. It can be triggered by motion, movement, smoke, water leaks, poor air quality, high temperatures, a pressed SOS button, or unauthorized door openings. All these events and more can be set as direct triggers for the WOOX R7051. Please note that a WOOX Zigbee gateway, such as the R7070, is required for use (not included).