# Shelly add-ons and modules

*Shelly / 12 models / 2026*

> Shelly's add-ons attach to a host device through a proprietary serial interface and add sensor inputs, an RS485 Modbus link or a LoRa radio. The Plus Add-on and the Pro Sensor Add-on take DS18B20 and DHT22 sensors, the Pro Modbus Add-on works as a Modbus client and server, and the LoRa add-ons list a range of up to 5 km. The line also includes the Shelly Shutter, the Pro Dual Cover / Shutter PM, The Pill, the Shelly-X-MOD1 module and the first-generation Uni. The LAN Switch is a five-port DIN-rail Ethernet switch.

- Canonical page: https://smarthomecanon.com/lines/shelly-add-ons-and-modules
- Last checked: 2026-10-13

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [Shelly](https://smarthomecanon.com/brands/shelly) |
| Models | 12 |
| Lines | 5 |
| Current lines | 4 |
| On sale now | 4 |
| Releases | 2026 |

## Currently sold

**Shelly add-ons and modules: models on sale now**

| Model | Series | Released |
| --- | --- | --- |
| [Shelly Pro LoRa Add-on](https://smarthomecanon.com/lines/shelly-add-ons-and-modules#shelly-pro-lora-add-on) | Pro (DIN rail) | 2026-03-06[^1] |
| [Shelly Pro Sensor Add-on](https://smarthomecanon.com/lines/shelly-add-ons-and-modules#shelly-pro-sensor-add-on) | Pro (DIN rail) | unknown |
| [Shelly Pro Modbus Add-on RS485](https://smarthomecanon.com/lines/shelly-add-ons-and-modules#shelly-pro-modbus-add-on-rs485) | Pro (DIN rail) | unknown |
| [Shelly LAN Switch](https://smarthomecanon.com/lines/shelly-add-ons-and-modules#shelly-lan-switch) | Pro (DIN rail) | unknown |
| [Shelly Pro Dual Cover / Shutter PM](https://smarthomecanon.com/devices/shelly-pro-dual-cover-shutter-pm) | Pro (DIN rail) | unknown |
| [Shelly Plus Add-on](https://smarthomecanon.com/lines/shelly-add-ons-and-modules#shelly-plus-add-on) | Plus | unknown |
| [Shelly Plus AddOn +1DS, +2DS and +3DS](https://smarthomecanon.com/lines/shelly-add-ons-and-modules#shelly-plus-addon-ds) | Plus | unknown |
| [Shelly LoRa Add-on](https://smarthomecanon.com/lines/shelly-add-ons-and-modules#shelly-lora-add-on) | Gen3 and Gen4 | unknown |
| [Shelly Shutter](https://smarthomecanon.com/devices/shelly-shutter) | Gen3 | unknown |
| [Shelly The Pill by Shelly](https://smarthomecanon.com/devices/the-pill-by-shelly) | Gen3 | unknown |
| [Shelly X-MOD1](https://smarthomecanon.com/lines/shelly-add-ons-and-modules#shelly-x-mod1) | Module | unknown |

## Lineup

**Shelly add-ons and modules: every model**

| Model | Model numbers | Generation | Model code | What it does | Works with | Connection | Power | Status |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [Shelly Plus Add-on](https://smarthomecanon.com/lines/shelly-add-ons-and-modules#shelly-plus-add-on) |  | Plus[^2] | unknown | Sensor interface with 1 analog input, 1 digital input and a 1-Wire bus for up to 5 DS18B20 probes or one DHT22[^3] | Shelly Plus, Gen3 and Gen4 devices listed on its page, such as Plus 1, 1PM and 2PM, 1 Gen3 and 1 Gen4[^3] | Shelly proprietary serial interface to the host device[^3] | 3.3 V DC from the host device[^3] | Current[^4][^5] |
| [Shelly Plus AddOn +1DS, +2DS and +3DS](https://smarthomecanon.com/lines/shelly-add-ons-and-modules#shelly-plus-addon-ds) |  | Plus[^2] | unknown | Plus Add-on sold in +1DS, +2DS and +3DS listings, named for DS18B20 temperature probes[^3] | Shelly Plus, Gen3 and Gen4 devices listed on the Plus Add-on page[^3] | Shelly proprietary serial interface to the host device[^3] | 3.3 V DC from the host device[^3] | Current[^6][^5] |
| [Shelly Pro Sensor Add-on](https://smarthomecanon.com/lines/shelly-add-ons-and-modules#shelly-pro-sensor-add-on) |  | Pro (DIN rail)[^7] | unknown | Sensor interface with 2 analog inputs (0-10 V), 2 digital inputs, one solid-state output and two 1-Wire data terminals[^8] | Shelly Pro 1, 1PM, 2, 2PM, 3EM, EM-50 and Pro Dimmers[^8] | Shelly proprietary serial interface to the host device[^8] | 12 V DC from the host device[^8] | Current[^9][^5] |
| [Shelly Pro Modbus Add-on RS485](https://smarthomecanon.com/lines/shelly-add-ons-and-modules#shelly-pro-modbus-add-on-rs485) |  | Pro (DIN rail)[^7] | unknown | RS485 Modbus add-on that works as a Modbus client and server[^10] | Shelly Pro EM-50, Pro 3EM, Pro 1 and Pro 2[^10] | RS485 half-duplex, up to 32 nodes[^10] | 3.3 V and 12 V DC from the host device[^10] | Current[^11][^5] |
| [Shelly Pro LoRa Add-on](https://smarthomecanon.com/lines/shelly-add-ons-and-modules#shelly-pro-lora-add-on) |  | Pro (DIN rail)[^7] | unknown | LoRa radio add-on (EU868) with an SMA antenna connector, range up to 5 km[^12] | Shelly Pro 1, 1PM, 2, 2PM, 3EM, EM-50, Pro Dimmers and Pro RGBWW PM[^12] | LoRa EU868[^12] | 3.3 V DC from the host device[^12] | Current[^13][^5] |
| [Shelly LoRa Add-on](https://smarthomecanon.com/lines/shelly-add-ons-and-modules#shelly-lora-add-on) |  | Gen3 and Gen4[^14] | unknown | LoRa radio add-on with an external antenna, range up to 5 km[^15] | Gen3 and Gen4 devices listed on its page, such as Shelly 1, 1PM and 2PM, DALI Dimmer Gen3, EM Gen3 and EM Gen4[^15] | LoRa EU868, US915 and BR915-928 (AU915-928 listed as coming)[^15] | 3.3 V DC from the host device[^15] | Current[^16][^5] |
| [Shelly LAN Switch](https://smarthomecanon.com/lines/shelly-add-ons-and-modules#shelly-lan-switch) |  | Pro (DIN rail)[^7] | unknown | DIN-rail Ethernet switch with 5 RJ45 ports at 10/100 Mbps[^17] | Shelly Pro devices and other LAN equipment[^17] | Ethernet[^17] | 110-240 V AC, under 1 W[^17] | Current[^18][^5] |
| [Shelly Pro Dual Cover / Shutter PM](https://smarthomecanon.com/devices/shelly-pro-dual-cover-shutter-pm) | SPSH-002PE16EU | Pro (DIN rail)[^7] | SPSH-002PE16EU[^19] | Dual cover controller for two covers, shutters or blinds, 16 A per output, with power measurement and DIN-rail mounting[^19] | Two single-phase AC cover motors[^19] | Wi-Fi 802.11 b/g/n, Bluetooth 4.2, Ethernet[^19] | 110-240 V AC, under 3 W[^19] | Current[^20][^5] |
| [Shelly Shutter](https://smarthomecanon.com/devices/shelly-shutter) | S3SH-0A2P4EU | Gen3[^14] | S3SH-0A2P4EU[^21] | Cover controller with power measurement for shutters, shades and blinds, including Venetian blinds, up to 4 A for motors[^21] | Single-phase AC motors with electronic or mechanical limit switches[^21] | Wi-Fi 802.11 b/g/n, Bluetooth 4.2[^21] | 110-240 V AC, under 1.4 W[^21] | Current[^22][^5] |
| [Shelly The Pill by Shelly](https://smarthomecanon.com/devices/the-pill-by-shelly) | S3SN-0U53X | Gen3[^23] | S3SN-0U53X[^23] | Low-voltage unit for DS18B20 or DHT22 temperature sensing, digital inputs and outputs and an analog input[^23] | External sensors and peripheral add-ons (SSR, analog 0-30 V)[^23] | Wi-Fi 802.11 b/g/n, Bluetooth 4.2 (BLE)[^23] | 5 V DC over USB-C[^23] | Current[^24][^5] |
| [Shelly X-MOD1](https://smarthomecanon.com/lines/shelly-add-ons-and-modules#shelly-x-mod1) | Shelly-X-MOD1-H8, Shelly-X-MOD1U-H8 | Module[^25] | Shelly-X-MOD1-H8, Shelly-X-MOD1U-H8[^25] | Embedded module with a configurable IO bank for switcher scenarios, part of the Shelly on Module family[^25] | Built into other products[^25] | 2.4 GHz Wi-Fi 802.11 b/g/n, Bluetooth 5[^25] | unknown | Current[^26][^5] |
| [Shelly Uni](https://smarthomecanon.com/lines/shelly-add-ons-and-modules#shelly-uni) | SHUNI-1 | Gen1[^27] | SHUNI-1[^28] | Two digital inputs, two potential-free outputs (100 mA) and an ADC for 0-30 V[^29] | Up to three DS18B20 sensors or one DHT22 sensor[^29] | Wi-Fi 802.11 b/g/n[^29] | AC 12-24 V or DC 12-36 V[^29] | Discontinued[^30] |

## Timeline

**Shelly add-ons and modules: dated events**

| Date | Model | Event | Detail |
| --- | --- | --- | --- |
| 2026-03-06[^1] | [Shelly Pro LoRa Add-on](https://smarthomecanon.com/lines/shelly-add-ons-and-modules#shelly-pro-lora-add-on) | Announced | Presented at Light + Building 2026. |

## Related pages

- [Shelly](https://smarthomecanon.com/brands/shelly) (brand)
- [Shelly Pro Dual Cover / Shutter PM](https://smarthomecanon.com/devices/shelly-pro-dual-cover-shutter-pm) (device)
- [Shelly Shutter](https://smarthomecanon.com/devices/shelly-shutter) (device)
- [Shelly The Pill by Shelly](https://smarthomecanon.com/devices/the-pill-by-shelly) (device)

## Sources

[^1]: Shelly Innovations at Light + Building 2026 (2026-03-06). https://www.shelly.com/blogs/media-kit/shelly-innovations-at-light-building (manufacturer, checked 2026-10-13)
[^2]: Shelly Plus devices - Shelly Knowledge Base. https://kb.shelly.cloud/knowledge-base/shelly-plus-devices (manufacturer, checked 2026-10-13)
[^3]: Shelly Plus Add-on - Shelly Knowledge Base. https://kb.shelly.cloud/knowledge-base/shelly-plus-add-on (manufacturer, checked 2026-10-13)
[^4]: Shelly Plus Add-on - Shelly Europe shop. https://www.shelly.com/products/shelly-plus-add-on (manufacturer, checked 2026-10-13)
[^5]: Shelly Europe shop catalog (Shopify product feed, pages 1-3). https://www.shelly.com/products.json?limit=250&page=1 (manufacturer, checked 2026-10-13)
[^6]: Shelly Plus AddOn +1DS, +2DS and +3DS - Shelly Europe shop. https://www.shelly.com/products/shelly-plus-addon-2x-sensor-ds (manufacturer, checked 2026-10-13)
[^7]: Shelly Pro devices - Shelly Knowledge Base. https://kb.shelly.cloud/knowledge-base/shelly-pro-devices (manufacturer, checked 2026-10-13)
[^8]: Shelly Pro Sensor Add-on - Shelly Knowledge Base. https://kb.shelly.cloud/knowledge-base/shelly-pro-sensor-add-on (manufacturer, checked 2026-10-13)
[^9]: Shelly Pro Sensor Add-on - Shelly Europe shop. https://www.shelly.com/products/shelly-pro-sensor-add-on (manufacturer, checked 2026-10-13)
[^10]: Shelly Pro Modbus Add-on RS485 - Shelly Knowledge Base. https://kb.shelly.cloud/knowledge-base/shelly-pro-modbus-add-on (manufacturer, checked 2026-10-13)
[^11]: Shelly Pro Modbus Add-on RS485 - Shelly Europe shop. https://www.shelly.com/products/shelly-pro-modbus-add-on-rs485 (manufacturer, checked 2026-10-13)
[^12]: Shelly Pro LoRa Add-on - Shelly Knowledge Base. https://kb.shelly.cloud/knowledge-base/shelly-pro-lora-add-on (manufacturer, checked 2026-10-13)
[^13]: Shelly Pro LoRa Add-on - Shelly Europe shop. https://www.shelly.com/products/shelly-pro-lora-add-on (manufacturer, checked 2026-10-13)
[^14]: Shelly Gen3 devices - Shelly Knowledge Base. https://kb.shelly.cloud/knowledge-base/shelly-gen3-devices (manufacturer, checked 2026-10-13)
[^15]: Shelly LoRa Add-on - Shelly Knowledge Base. https://kb.shelly.cloud/knowledge-base/shelly-lora-add-on (manufacturer, checked 2026-10-13)
[^16]: Shelly LoRa Add-on - Shelly Europe shop. https://www.shelly.com/products/shelly-lora-add-on (manufacturer, checked 2026-10-13)
[^17]: Shelly LAN Switch - Shelly Knowledge Base. https://kb.shelly.cloud/knowledge-base/shelly-lan-switch (manufacturer, checked 2026-10-13)
[^18]: Shelly LAN Switch - Shelly Europe shop. https://www.shelly.com/products/shelly-lan-switch (manufacturer, checked 2026-10-13)
[^19]: Shelly Pro Dual Cover/Shutter PM - Shelly Knowledge Base. https://kb.shelly.cloud/knowledge-base/shelly-pro-dual-cover-pm (manufacturer, checked 2026-10-13)
[^20]: Shelly Pro Dual Cover / Shutter PM - Shelly Europe shop. https://www.shelly.com/products/shelly-pro-dual-cover-shutter-pm (manufacturer, checked 2026-10-13)
[^21]: Shelly Shutter - Shelly Knowledge Base. https://kb.shelly.cloud/knowledge-base/shelly-shutter (manufacturer, checked 2026-10-13)
[^22]: Shelly Shutter - Shelly Europe shop. https://www.shelly.com/products/shelly-shutter (manufacturer, checked 2026-10-13)
[^23]: The Pill by Shelly - Shelly Knowledge Base. https://kb.shelly.cloud/knowledge-base/the-pill-by-shelly (manufacturer, checked 2026-10-13)
[^24]: The Pill by Shelly - Shelly Europe shop. https://www.shelly.com/products/the-pill-by-shelly (manufacturer, checked 2026-10-13)
[^25]: Shelly-X-MOD1-H8 - Shelly Europe shop. https://www.shelly.com/products/shelly-x-mod1-h8 (manufacturer, checked 2026-10-13)
[^26]: Shelly-X-MOD1 - Shelly Europe shop. https://www.shelly.com/products/shelly-x-mod1 (manufacturer, checked 2026-10-13)
[^27]: Shelly Gen1 devices - Shelly Knowledge Base. https://kb.shelly.cloud/knowledge-base/shelly-gen1-devices (manufacturer, checked 2026-10-13)
[^28]: Shelly Technical Documentation: Gen1 devices. https://shelly-api-docs.shelly.cloud/gen1/ (manufacturer, checked 2026-10-13)
[^29]: Shelly Uni - Shelly Knowledge Base. https://kb.shelly.cloud/knowledge-base/shelly-uni (manufacturer, checked 2026-10-13)
[^30]: Shelly Uni - Shelly Europe shop. https://www.shelly.com/products/shelly-uni (manufacturer, checked 2026-10-13)