Add Sonoff SV to eWeLink APP
APP: eWeLink, you can search it in App store or Google play
Tutorial link:
http://ewelink.coolkit.cc/?p=151
Where to buy:
http://www.diymalls.com/Sonoff%20SV%2...
https://www.amazon.com/dp/B086ZGW32Z
https://www.amazon.com/dp/B07ZLQF6KJ
https://www.amazon.com/dp/B079FNSH1Z
https://www.amazon.com/dp/B086ZHYR4P