Sonoff RF Bridge – 433 MHz to WiFi 2.4 GHz for Smart Home applications.
It’s work also with Amazon Alexa, Google Home and Home Assistant.
-> BangGood – Amazond
![](https://www.emcu-homeautomation.org/wp-content/uploads/2021/06/immagine-64.png)
The official APP to use with Sonoff Bride is: eWeLink
An Italian explanation – Spiegazioni su come usare eWeLink è qui e un video che spiega come configurare il Sonoff RF bridge è qui.
HiKam, PIR sensor (second generation) – passive infrared sensor, for indoor and outdoor use, with 433 MHz wireless connectivity.
The manual is here (in Italian language).
We suggest to use in conjunction to SonOff bridge 433/WiFi or SonOff bridge 433/ZigBee.
![](http://www.emcu.eu/wp-content/uploads/2019/04/PIR.png)
Smart WIFI and 433MHz Smart Switch – Wireless RF Remote Control Smart Home Timer compatible with Alexa and Google Home (1 Switch + 1 Remote).
![](http://www.emcu.eu/wp-content/uploads/2019/04/WiFi-e-433MHz.png)
Quick reference manual is here (in Italian language), more detailed description is here.
Qui vi è un video che ne spiega l’uso in Italiano.
It is also possible to use it in conjunction to SonOff bridge 433/WiFi.
Wireless Remote Transmitter at 433 Mhz
Remote control max distance: 0-100m.
![](https://www.emcu-homeautomation.org/wp-content/uploads/2021/06/immagine-63.png)
In our application the distance tested indoor is around 25m from this button to the Wireless Smart WIFI and 433MHz Smart Switch.
![](https://www.emcu-homeautomation.org/wp-content/uploads/2021/05/radiocontrol-.png)
On internet there are a lot of radio control (433 & 868 Mhz), below there is some links also for radio control compatible with Alexa, Ewelink APP, etc.
Radio controlled eMylo 433
eMylo® AC 220… 240Vac – 1000W – 2x 1 Channel Smart Remote Control switch RF transmitter 433MHz – wireless relay with receiver. The manual is here (in Italian language).
![](http://www.emcu.eu/wp-content/uploads/2019/04/TXRXa433MHz.png)
![](http://www.emcu.eu/wp-content/uploads/2019/02/2chRTX-1.png)
Below the manual in Italian language.
![](http://www.emcu.eu/wp-content/uploads/2019/02/Radio2CH.png)