240 volt capable smart switch with integrated power measurement
SONOFF SV Safe Voltage WiFi Wireless Switch Smart Home Module
Sonoff DEV: Sonoff IoT WiFi Development Board
Sonoff Dual - Tasmota
Sonoff TH - ITEAD Wiki
Sonoff 4CH 4 Channel Mains Control - Scargill's Tech Blog
Sonoff Basic - Tasmota
Sonoff - ITEAD Wiki
Sonoff TH10 and TH16 - Scargill's Tech Blog
Sonoff Touch US Switch (IM160928099) Configuration for Tasmota