
A Shelly 1 Gen3 relay wired to the door entry unit's release button opens the building's main door from your phone, at home or away. With the two NFC tags you only have to tap the phone to open it, thanks to an automation on the phone itself. It is run from the Shelly app, with no hub, and the door entry unit carries on working as before.
What it does
- The Shelly 1 Gen3 closes its contact for an instant in parallel with the door release button: it is like pressing the key button on the entry phone.
- From the Shelly app you open the main door at home or away, for a relative or a courier, for example.
- With the NFC tags, holding the phone to a tag starts an automation that triggers the door release.
- With Matter the relay also appears in Apple Home, Alexa and Google Home, to open by voice or from a scene.
- The door entry phone stays as it was: it rings, you answer and you release the door with its own button.

How it is installed
What's in the kit

| Qty | Item | Unit price | Subtotal |
|---|---|---|---|
| 1 | Shelly 1 Gen3 Matter relay 16ARelay / switch | 15,30 € | 15,30 € |
| 1 | Sonoff NFC tags, 2 piecesNFC access | 14,90 € | 14,90 € |
| 1 | Wago 221-413 lever connectors, 10 piecesAccessory: connections · module connections | 8,99 € | 8,99 € |
| Kit total | 39,19 € |
Recommended options
| Qty | Item | When you need it | Price |
|---|---|---|---|
| 1 | Deep flush 503 back boxes, 5 pieces | if the module will not fit behind the switch insert | 9,23 € |
| 1 | Gewiss junction box 118x96x70 | or modules in the junction box instead | 6,58 € |
| Options total | 15,81 € |
Prices taken from Amazon.it on 22/09/2026: they can change, and the price Amazon shows at the time of purchase is the one that applies.
Add the whole kit to your Amazon basket3 items, 3 pieces · optional extras are added from the individual linksDelivery, returns and warranty: Amazon shows these when you buy.
Before you order
Do you need a hub?
No. The Shelly 1 Gen3 connects straight to the home Wi-Fi and is managed from the Shelly app. The NFC tags need no hub: the phone reads them and then sends the command to the relay.
Will it work with my door entry phone?
It works on systems where the door-release button closes a contact between two wires, which covers most analogue door entry phones. On some two-wire digital audio and video entry systems, wiring in parallel is not enough. Send us the make and model from the contact page and we will check before you buy.
How do the NFC tags work?
The tag does not open anything by itself: when you hold your phone up, the phone reads it and runs an automation you have created, with Shortcuts on iPhone or an automation app on Android, which triggers the Shelly. The phone needs NFC switched on and a connection to the internet or to the home network.
Does it work with Alexa, Google and Apple?
The Shelly 1 Gen3 is Matter-compatible: it is added to Apple Home, Alexa and Google Home as a switch. For the door release it is better to use scenes or commands with confirmation, to avoid opening the door by accident.
Do you need an electrician?
Yes: the relay is wired to the door entry unit's release button and given a supply. Work on 230V must be carried out by qualified personnel, with the installation isolated. In a block of flats, if work on the communal installation is needed, tell the building manager.
What happens if there is no internet?
The door entry phone carries on working as before with its own button. Without internet, though, you cannot release the door from the app when you are out; at home, with the phone on the Wi-Fi, the command can still reach the relay on the local network.
What if a product is out of stock on Amazon?
Get in touch through the contact page quoting the kit code and the product you cannot find: we will point you to an alternative that works with the Shelly app, so you keep a combination we have checked and you do not have to hunt for an equivalent model yourself.
Why buy on Amazon?
Purchase, payment, returns and warranty are handled by Amazon, as with any other order on the site. The kit is our own work and we checked that the parts work together; delivery times, returns and warranty are shown on Amazon when you buy.
Notes
Not included
- The home router and internet connection
- Door entry phone and electric release
- Power supply for the relay next to the door entry unit, if not supplied
- Electrical connection work
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