Any brand
12 or 24 V interface relay
Only when the gate's control board has no signal-light output: it links the gate's sensor to the Shelly at low voltage.
Shelly
The relay that opens the garage gate from the dashboard and the app, and shows whether it was left open.
The stores' links are coming soon. Meanwhile, search for the exact model: Shelly 1 Mini Gen4.
Prices and availability are the store's at the time of purchase. The stores are Brazilian. Some links on this page are affiliate links: if you buy on Amazon or Mercado Livre through them, the store pays Abriu a commission, at no extra cost to you. As an Amazon Associate, Abriu earns from qualifying purchases.
Any brand
Only when the gate's control board has no signal-light output: it links the gate's sensor to the Shelly at low voltage.