Note on Sonoff Firmware:
Do not update the Sonoff firmware to the latest version. If there is a network or power connection issue during the firmware update, the Sonoff will be damaged and cannot be restored to the original firmware.
All Sonoff devices only work with 2.4GHz WiFi. 5GHz WiFi is not supported. Please set up a 2.4GHz-only WiFi router to use with Sonoff.
Introduction
The Sonoff RF Bridge 433MHz RF Remote Control Bridge is used as a bridge to control RF 433MHz wireless devices via WiFi. It can learn commands from a remote control and then send the corresponding commands to turn the device on or off using the Ewelink app on your phone. In addition, the bridge can also learn commands from burglar alarms and 433MHz motion sensors and send alerts to your phone when there is an alarm. Once the bridge is connected to the app on your phone, you can control it from anywhere as long as you have an internet connection.
Specifications
Model: Sonoff RF Bridge 433
Power: MicroUSB 5VDC
Main IC: ESP8285/EFM8BB1
WiFi: 2.4GHz (does not work with 5GHz WiFi. Please set up a 2.4GHz-only WiFi router to use with Sonoff.)
WIFI 2.4G Features:Supports 802.11 b/g/n/d/e/i/k/r
Supports STA/AP/STA+AP modes
Supports WPA/WPA2, PSK and WP
Integrated TCP/IP protocol stack
Supports multiple TCP client connections
Supports Wi-Fi direct (P2P)
Manages multiple queues, maximizing 802.11e-compliant QoS priority
Adaptive rate fallback algorithm sets optimal Tx speed and power based on actual SNR and packet loss information
433.92MHz Wireless Features:Complete monolithic UHF receive/transmit
Receive and transmit frequency: 433.92 MHz
Receive sensitivity: -107dBm
Maximum transmit power: 17dBm
Transmission speed: 10kbps
Automatic tuning without manual adjustment
Extremely low RF antenna radiation
Receive supports fixed code encryption, such as PT2260, PT2262, PT2264, EV1527, etc.
Does not support rolling code and dynamic code learning