• DW1 is a door and window alarm sensor. The door alarms can work with Sonoff RF Bridge 433. DW1 door alarm sensor detects the opening status and immediately sends alarm notification message to the app.
• Ultra-low power magnetic dedicated microprocessor
• Supports wireless frequency of 433.92MHz
• 200m wireless transmit distance
• Built-in antenna provided
• Less than 1μA quiescent current