Sonoff Dual R3 has a hidden secret : r/Not_Enough_Tech

Are new Sonoff ZigBee sensors better? - NotEnoughTech

Sonoff Dual-r3 NO-NEUTRAL simple mod circuit

Sonoff DUALR3 has a hidden secret - NotEnoughTech

DUALR3 offline always - Free discussion - eWeLink Forum

The new Sonoff DualR3 - ESPHome - Home Assistant Community

DUALR3 - SONOFF Official

New Sonoff Dual R3 has a hidden secret, and I blew it up during the review 🤦‍♂️ [my fault] : r/homeautomation

Sonoff DUALR3 has a hidden secret - NotEnoughTech

Sonoff Dual-r3 NO-NEUTRAL simple mod circuit