SONOFF 433 RF Bridge

Change the control way from 433MHz RF to the eWeLink with Wi-Fi. It can work with PIR2 motion sensor and DW1 door/window alarm sensor to serve home security (PIR2 and DW1 are not included.)
 
Support the 433MHz RF to Control
Compatible with the 433MHz remote controller for easier control. You can add up to four RM433 RF or alarms, also add them together(max. 4 devices). One remote controller can learn 4 devices, which means 16 devices supporting 433MHZ frequency can be added on the app.
 
See Who’s Approaching Your House
By working with the PIR2 motion sensor to detect any movement, perfect for keeping an eye on your home when you’re away.