Sonoff Dual R3 has a hidden secret : r/Not_Enough_Tech

Sonoff DUALR3 has a hidden secret - NotEnoughTech

Turning an Existing Light Switch into an MQTT Connected Smart Switch using a Sonoff Mini

Sonoff DUALR3 has a hidden secret - NotEnoughTech

Sonoff DUALR3 has a hidden secret - NotEnoughTech

Sonoff DUALR3 has a hidden secret - NotEnoughTech

Turning an Existing Light Switch into an MQTT Connected Smart Switch using a Sonoff Mini

Sonoff, what were you thinking? Sonoff Cam Slim - NotEnoughTech

Sonoff DualR3 is awesome, has a secret and now it's dead

Turning an Existing Light Switch into an MQTT Connected Smart Switch using a Sonoff Mini

Sonoff DUALR3 has a hidden secret - NotEnoughTech

WiFi-Sonoff-Dual R3

Flashing Tasmota on a Sonoff Dual R3 & Integrating With Home Assistant – Baldacchino Automation

Sonoff Dual R3 Smart WiFi Switch

WiFi-Sonoff-Dual R3 - MCMP IMPORTS

1-5PCS SONOFF DUAL R3 Lite Dual Relay Module DIY MINI Smart Switch 2-Way Control Timing via eWeLink Alexa Google Smart Home - AliExpress