The SONOFF MINI-D is a dry-contact retrofit relay (voltage-free contact) with a 2A rated relay and AC/DC supply support, designed for app/voice control via eWeLink, HomeKit/Matter, Alexa and Google Home. It's a capable DIY-friendly smart garage/contactor interface (safe isolated signalling and contactor control) but reflects Sonoff's budget/hacker trade-offs: less polished HomeKit integration than premium rivals and some ecosystem features require MQTT or custom flashing to preserve advanced functions.
For tinkerers and installers who need a safe dry-contact smart trigger for garage/contactor projects; avoid if you want flawless out-of-box HomeKit polish or zero DIY flashing.
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