This RF Bridge can convert most of the 433MHz RF Remotes into WiFi wireless. By adding the RF wireless Bridge to iOS/Android App eWeLink WiFi wirelessly, you can add up to four 1-4 buttons 433MHz Wireless RF Remotes to the RF Bridge device. After pairing the RF Remote buttons with RF controlled devices, you can directly control maximum 16 RF controlled devices on the App through WiFi/2/3/4G network.

It can be used for most of the 433MHz RF Remote controlled products, like RF controlled switch, RF controlled socket, RF controlled bulb, RF controlled door opener, etc. 

Even more exciting is that it will work with door magnetic sensor, human body IR sensor, and more other sensors to realize security alarm, and allowing you to DIY smart scenes. This model supports Amazon Alexa and Google Home voice control.

PIR2 is a 433MHz RF PIR motion sensor that for human detection. The motion detector can work with the Sonoff RF Bridge 433, providing human detected alarm message push to your phone.

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. 

Note 1: 

• The receiving supports fixed code 433 frequency, like PT2260, PT2262, PT2264, EV1527, etc.
• Not support to learn rolling code and dynamic code
• You can't see device status changes in the App.

Note 2:

What's new in Android & iOS 2.5.0?

• Scheduled/countdown timers are supported.
• iOS App supports to add this product.
• RF curtain switch and RF alarm are supported.

Works With Amazon Alexa

To control Sonoff RF Bridge, you'll need to say RF Remote name and button name together.

Standard voice control commands phrases (if you just say the RF Remote name, Alexa will turn on/off all buttons of that RF Remote immediately):

Alexa, turn on {RF Remote Name}
Alexa, turn off {RF Remote Name}

Alexa, turn on {RF Remote Name} {ButtonName}
Alexa, turn off {RF Remote Name} {ButtonName}

Specifications

• Power Supply: USB 5V
• Wireless Standard: WiFi 802.11b/g/n, 433MHz
• Security Mechanism: WPA-PSK/WPA2-PSK
• Product Dimensions: 62*62*20 (mm)

Features for Sonoff DW1 Sensor

• 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

Specifications for Sonoff DW1 Sensor

• Support Battery: 12V 23A 
• Wireless frequency: 433.92MHz
• Protocol: EV1527
• Quiescent current: ≤5μA
• Emission current: ≤10mA
• Operating environment: -10℃-50℃ (14℉-122℉)
• Product Size: 77*49.5*18.8mm
• Battery: length 27mm, diameter 10mm, this model doesn’t come with battery
• Weight: 45g

Features for Sonoff PIR2 sensor

• Dual infrared 
• Ultra-low power microprocessors
• Double temperature compensation technology
• Robust and durable, suitable for homes, offices, sheds, garages etc.
• Easy installation and set-up, wall-mounted

Specification for Sonoff PIR2 sensor

• Transmit distance: 150m (open)
• Voltage: 3V (2*AA)
• Standby current: ≤9μA
• Alarm current: ≤10mA
• Wireless frequency: 433.92MHz
• Wireless Transmit Code: 1527Mhz (default)
• Detection distance: 12m@ 25℃
• Detection angle: 110 degrees
• Maximum coverage area: 12m*12m
• Alarm indicator light: on for 3 seconds
• Working environment: indoor
• Tamper switch: normally closed
• Anti-white light intensity: 10000Lux
• Packing size: 165*65*50mm
• Product Size: 120*62*46mm
• Battery type: 2*AA (Note: this model doesn’t come with battery)
• Weight: 120g