Fangrui Product Details 1. Sonoff Rf Bridge R2 433mhz To Wifi Smart Home Security Remote Switch 2. Convert A 433mhz Rf Remote Control Into An Application Via Wifi 3. Make The 433mhz Radio Frequency Device App Remotely Controllable 4. Support Adding Four 433mhz Radio Frequency Remote Controlcurtain Switchalarm 5. Supports Control Of Up To 16 433mhz Radio Frequency Devices 6. Receive Alarm Push Information From 433mhz Pir Sensor, Door And Window Alarm Sensor 7. Control 433mhz Radio Frequency Equipment Via Wi-fi Or Mobile Network 8. Free Ios And Android Mobile App Ewelink 9. Wide Control Range: Use 433mhz Radio Frequency Remote Control To Control 433mhz Radio Frequency Equipment, You Must Stay Indoors. Sonoff Rf Bridge Helps To Switch Signals, Allowing You To Control 433mhz Rf Equipment Anytime, Anywhere 10. Indoor Smoke Concentration Monitoring, If A Fire Occurs, Rf Bridge Will Send An Alarm Message 11. Set The Number Of Times To Openclose The Curtains Regularly. 12. Quickly Build A Home Security System, Link With Security Equipment, And Act As An Alarm Center 13. Anti-theft Alarm Push, Once Infrared Changes Are Detected, Rf Bridge Will Push Alarm Information To Your Smartphone 14. Power Supply: Usb 5v (not Included) 15. Wireless Standard: Wifi 802.11bgn, 433mhz 16. Security Mechanism: Wpa-pskwpa2-psk 17. Material: Pc V0 18. Product Size: 62x62x20mm