Sonoff THR316/320 is a Wi‑Fi relay module with an RJ9 Dallas sensor bus (DS18B20 support) and a 16A relay plus status LEDs and LCD for real‑time temp/humidity. It integrates with ESPHome/Home Assistant for local automation, but flashing third‑party firmware can require serial access and has reported boot‑loop issues — strong for local climate control if you’re comfortable with DIY flashing and Home Assistant.
Best for Home Assistant users wanting local temperature/humidity control with DS18B20 probes; avoid if you need plug‑and‑play cloud‑only setup.
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