Sonoff DW2 RF 433mhz Wireless Window Or Door Sensor
The Sonoff DW2 RF 433mhz Wireless Window or Door Sensor is a white, wireless unit designed to detect when a door or window is opened or closed. It is compatible with a universal range of brands and features 433mhz connectivity. This sensor is ideal for use in indoor locations and operates on the RF smart home protocol. Made in China, this unit is sold individually and is perfect for adding an extra layer of security to your home surveillance system.
