Tuya Smart WIFI Wireless Security Alarm System with 433MHz Siren and Motion Sensor Compatible with Google Home and Alexa

A wireless home alarm kit that includes a siren and door/window sensor and supports up to 40 wireless zones. The siren unit runs on DC 9 V, has one output and measures approximately 12 mm × 10.2 mm × 11 mm. The system is CE certified, connects wirelessly, and is armed with an RF remote controller; it does not include a password keypad or a display and has no video interface or smart‑home platform integration.